📦 添加虚拟环境和启动脚本

新增:
- backend/venv/ - Python 虚拟环境
- backend/start.sh - 启动脚本（使用虚拟环境）
- backend/requirements.txt - 依赖列表
- .gitignore - 忽略虚拟环境和缓存文件

说明:
- 每个项目使用独立虚拟环境
- 避免依赖冲突
- 启动脚本自动创建和激活虚拟环境

frontend/node_modules/schema-utils/LICENSE

@@ -0,0 +1,20 @@
+Copyright JS Foundation and other contributors
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

frontend/node_modules/schema-utils/README.md

@@ -0,0 +1,317 @@
+<div align="center">
+  <a href="http://json-schema.org">
+    <img width="160" height="160"
+      src="https://raw.githubusercontent.com/webpack-contrib/schema-utils/main/.github/assets/logo.png">
+  </a>
+  <a href="https://github.com/webpack/webpack">
+    <img width="200" height="200"
+      src="https://webpack.js.org/assets/icon-square-big.svg">
+  </a>
+</div>
+
+[![npm][npm]][npm-url]
+[![node][node]][node-url]
+[![tests][tests]][tests-url]
+[![coverage][cover]][cover-url]
+[![GitHub Discussions][discussion]][discussion-url]
+[![size][size]][size-url]
+
+# schema-utils
+
+Package for validate options in loaders and plugins.
+
+## Getting Started
+
+To begin, you'll need to install `schema-utils`:
+
+```console
+npm install schema-utils
+```
+
+## API
+
+**schema.json**
+
+```json
+{
+  "type": "object",
+  "properties": {
+    "option": {
+      "type": "boolean"
+    }
+  },
+  "additionalProperties": false
+}
+```
+
+```js
+import schema from "./path/to/schema.json";
+import { validate } from "schema-utils";
+
+const options = { option: true };
+const configuration = { name: "Loader Name/Plugin Name/Name" };
+
+validate(schema, options, configuration);
+```
+
+### `schema`
+
+Type: `String`
+
+JSON schema.
+
+Simple example of schema:
+
+```json
+{
+  "type": "object",
+  "properties": {
+    "name": {
+      "description": "This is description of option.",
+      "type": "string"
+    }
+  },
+  "additionalProperties": false
+}
+```
+
+### `options`
+
+Type: `Object`
+
+Object with options.
+
+```js
+import schema from "./path/to/schema.json";
+import { validate } from "schema-utils";
+
+const options = { foo: "bar" };
+
+validate(schema, { name: 123 }, { name: "MyPlugin" });
+```
+
+### `configuration`
+
+Allow to configure validator.
+
+There is an alternative method to configure the `name` and`baseDataPath` options via the `title` property in the schema.
+For example:
+
+```json
+{
+  "title": "My Loader options",
+  "type": "object",
+  "properties": {
+    "name": {
+      "description": "This is description of option.",
+      "type": "string"
+    }
+  },
+  "additionalProperties": false
+}
+```
+
+The last word used for the `baseDataPath` option, other words used for the `name` option.
+Based on the example above the `name` option equals `My Loader`, the `baseDataPath` option equals `options`.
+
+#### `name`
+
+Type: `Object`
+Default: `"Object"`
+
+Allow to setup name in validation errors.
+
+```js
+import schema from "./path/to/schema.json";
+import { validate } from "schema-utils";
+
+const options = { foo: "bar" };
+
+validate(schema, options, { name: "MyPlugin" });
+```
+
+```shell
+Invalid configuration object. MyPlugin has been initialised using a configuration object that does not match the API schema.
+ - configuration.optionName should be a integer.
+```
+
+#### `baseDataPath`
+
+Type: `String`
+Default: `"configuration"`
+
+Allow to setup base data path in validation errors.
+
+```js
+import schema from "./path/to/schema.json";
+import { validate } from "schema-utils";
+
+const options = { foo: "bar" };
+
+validate(schema, options, { name: "MyPlugin", baseDataPath: "options" });
+```
+
+```shell
+Invalid options object. MyPlugin has been initialised using an options object that does not match the API schema.
+ - options.optionName should be a integer.
+```
+
+#### `postFormatter`
+
+Type: `Function`
+Default: `undefined`
+
+Allow to reformat errors.
+
+```js
+import schema from "./path/to/schema.json";
+import { validate } from "schema-utils";
+
+const options = { foo: "bar" };
+
+validate(schema, options, {
+  name: "MyPlugin",
+  postFormatter: (formattedError, error) => {
+    if (error.keyword === "type") {
+      return `${formattedError}\nAdditional Information.`;
+    }
+
+    return formattedError;
+  },
+});
+```
+
+```shell
+Invalid options object. MyPlugin has been initialized using an options object that does not match the API schema.
+ - options.optionName should be a integer.
+   Additional Information.
+```
+
+## Examples
+
+**schema.json**
+
+```json
+{
+  "type": "object",
+  "properties": {
+    "name": {
+      "type": "string"
+    },
+    "test": {
+      "anyOf": [
+        { "type": "array" },
+        { "type": "string" },
+        { "instanceof": "RegExp" }
+      ]
+    },
+    "transform": {
+      "instanceof": "Function"
+    },
+    "sourceMap": {
+      "type": "boolean"
+    }
+  },
+  "additionalProperties": false
+}
+```
+
+### `Loader`
+
+```js
+import { getOptions } from "loader-utils";
+import { validate } from "schema-utils";
+
+import schema from "path/to/schema.json";
+
+function loader(src, map) {
+  const options = getOptions(this);
+
+  validate(schema, options, {
+    name: "Loader Name",
+    baseDataPath: "options",
+  });
+
+  // Code...
+}
+
+export default loader;
+```
+
+### `Plugin`
+
+```js
+import { validate } from "schema-utils";
+
+import schema from "path/to/schema.json";
+
+class Plugin {
+  constructor(options) {
+    validate(schema, options, {
+      name: "Plugin Name",
+      baseDataPath: "options",
+    });
+
+    this.options = options;
+  }
+
+  apply(compiler) {
+    // Code...
+  }
+}
+
+export default Plugin;
+```
+
+### Allow to disable and enable validation (the `validate` function do nothing)
+
+This can be useful when you don't want to do validation for `production` builds.
+
+```js
+import { disableValidation, enableValidation, validate } from "schema-utils";
+
+// Disable validation
+disableValidation();
+// Do nothing
+validate(schema, options);
+
+// Enable validation
+enableValidation();
+// Will throw an error if schema is not valid
+validate(schema, options);
+
+// Allow to undestand do you need validation or not
+const need = needValidate();
+
+console.log(need);
+```
+
+Also you can enable/disable validation using the `process.env.SKIP_VALIDATION` env variable.
+
+Supported values (case insensitive):
+
+- `yes`/`y`/`true`/`1`/`on`
+- `no`/`n`/`false`/`0`/`off`
+
+## Contributing
+
+Please take a moment to read our contributing guidelines if you haven't yet done so.
+
+[CONTRIBUTING](./.github/CONTRIBUTING.md)
+
+## License
+
+[MIT](./LICENSE)
+
+[npm]: https://img.shields.io/npm/v/schema-utils.svg
+[npm-url]: https://npmjs.com/package/schema-utils
+[node]: https://img.shields.io/node/v/schema-utils.svg
+[node-url]: https://nodejs.org
+[tests]: https://github.com/webpack/schema-utils/workflows/schema-utils/badge.svg
+[tests-url]: https://github.com/webpack/schema-utils/actions
+[cover]: https://codecov.io/gh/webpack/schema-utils/branch/main/graph/badge.svg
+[cover-url]: https://codecov.io/gh/webpack/schema-utils
+[discussion]: https://img.shields.io/github/discussions/webpack/webpack
+[discussion-url]: https://github.com/webpack/webpack/discussions
+[size]: https://packagephobia.com/badge?p=schema-utils
+[size-url]: https://packagephobia.com/result?p=schema-utils

frontend/node_modules/schema-utils/declarations/ValidationError.d.ts

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+export default ValidationError;
+export type JSONSchema6 = import("json-schema").JSONSchema6;
+export type JSONSchema7 = import("json-schema").JSONSchema7;
+export type Schema = import("./validate").Schema;
+export type ValidationErrorConfiguration =
+  import("./validate").ValidationErrorConfiguration;
+export type PostFormatter = import("./validate").PostFormatter;
+export type SchemaUtilErrorObject = import("./validate").SchemaUtilErrorObject;
+declare class ValidationError extends Error {
+  /**
+   * @param {Array<SchemaUtilErrorObject>} errors array of error objects
+   * @param {Schema} schema schema
+   * @param {ValidationErrorConfiguration} configuration configuration
+   */
+  constructor(
+    errors: Array<SchemaUtilErrorObject>,
+    schema: Schema,
+    configuration?: ValidationErrorConfiguration,
+  );
+  /** @type {Array<SchemaUtilErrorObject>} */
+  errors: Array<SchemaUtilErrorObject>;
+  /** @type {Schema} */
+  schema: Schema;
+  /** @type {string} */
+  headerName: string;
+  /** @type {string} */
+  baseDataPath: string;
+  /** @type {PostFormatter | null} */
+  postFormatter: PostFormatter | null;
+  /**
+   * @param {string} path path
+   * @returns {Schema} schema
+   */
+  getSchemaPart(path: string): Schema;
+  /**
+   * @param {Schema} schema schema
+   * @param {boolean} logic logic
+   * @param {Array<object>} prevSchemas prev schemas
+   * @returns {string} formatted schema
+   */
+  formatSchema(
+    schema: Schema,
+    logic?: boolean,
+    prevSchemas?: Array<object>,
+  ): string;
+  /**
+   * @param {Schema=} schemaPart schema part
+   * @param {(boolean | Array<string>)=} additionalPath additional path
+   * @param {boolean=} needDot true when need dot
+   * @param {boolean=} logic logic
+   * @returns {string} schema part text
+   */
+  getSchemaPartText(
+    schemaPart?: Schema | undefined,
+    additionalPath?: (boolean | Array<string>) | undefined,
+    needDot?: boolean | undefined,
+    logic?: boolean | undefined,
+  ): string;
+  /**
+   * @param {Schema=} schemaPart schema part
+   * @returns {string} schema part description
+   */
+  getSchemaPartDescription(schemaPart?: Schema | undefined): string;
+  /**
+   * @param {SchemaUtilErrorObject} error error object
+   * @returns {string} formatted error object
+   */
+  formatValidationError(error: SchemaUtilErrorObject): string;
+  /**
+   * @param {Array<SchemaUtilErrorObject>} errors errors
+   * @returns {string} formatted errors
+   */
+  formatValidationErrors(errors: Array<SchemaUtilErrorObject>): string;
+}

frontend/node_modules/schema-utils/declarations/index.d.ts

@@ -0,0 +1,19 @@
+export type Schema = import("./validate").Schema;
+export type JSONSchema4 = import("./validate").JSONSchema4;
+export type JSONSchema6 = import("./validate").JSONSchema6;
+export type JSONSchema7 = import("./validate").JSONSchema7;
+export type ExtendedSchema = import("./validate").ExtendedSchema;
+export type ValidationErrorConfiguration =
+  import("./validate").ValidationErrorConfiguration;
+import { validate } from "./validate";
+import { ValidationError } from "./validate";
+import { enableValidation } from "./validate";
+import { disableValidation } from "./validate";
+import { needValidate } from "./validate";
+export {
+  validate,
+  ValidationError,
+  enableValidation,
+  disableValidation,
+  needValidate,
+};

frontend/node_modules/schema-utils/declarations/keywords/absolutePath.d.ts

@@ -0,0 +1,10 @@
+export default addAbsolutePathKeyword;
+export type Ajv = import("ajv").default;
+export type SchemaValidateFunction = import("ajv").SchemaValidateFunction;
+export type AnySchemaObject = import("ajv").AnySchemaObject;
+export type SchemaUtilErrorObject = import("../validate").SchemaUtilErrorObject;
+/**
+ * @param {Ajv} ajv ajv
+ * @returns {Ajv} configured ajv
+ */
+declare function addAbsolutePathKeyword(ajv: Ajv): Ajv;

frontend/node_modules/schema-utils/declarations/keywords/limit.d.ts

@@ -0,0 +1,14 @@
+export default addLimitKeyword;
+export type Ajv = import("ajv").default;
+export type Code = import("ajv").Code;
+export type Name = import("ajv").Name;
+export type KeywordErrorDefinition = import("ajv").KeywordErrorDefinition;
+/** @typedef {import("ajv").default} Ajv */
+/** @typedef {import("ajv").Code} Code */
+/** @typedef {import("ajv").Name} Name */
+/** @typedef {import("ajv").KeywordErrorDefinition} KeywordErrorDefinition */
+/**
+ * @param {Ajv} ajv ajv
+ * @returns {Ajv} ajv with limit keyword
+ */
+declare function addLimitKeyword(ajv: Ajv): Ajv;

frontend/node_modules/schema-utils/declarations/keywords/undefinedAsNull.d.ts

@@ -0,0 +1,14 @@
+export default addUndefinedAsNullKeyword;
+export type Ajv = import("ajv").default;
+export type SchemaValidateFunction = import("ajv").SchemaValidateFunction;
+export type AnySchemaObject = import("ajv").AnySchemaObject;
+export type ValidateFunction = import("ajv").ValidateFunction;
+/** @typedef {import("ajv").default} Ajv */
+/** @typedef {import("ajv").SchemaValidateFunction} SchemaValidateFunction */
+/** @typedef {import("ajv").AnySchemaObject} AnySchemaObject */
+/** @typedef {import("ajv").ValidateFunction} ValidateFunction */
+/**
+ * @param {Ajv} ajv ajv
+ * @returns {Ajv} configured ajv
+ */
+declare function addUndefinedAsNullKeyword(ajv: Ajv): Ajv;

frontend/node_modules/schema-utils/declarations/util/Range.d.ts

@@ -0,0 +1,79 @@
+export = Range;
+/**
+ * @typedef {[number, boolean]} RangeValue
+ */
+/**
+ * @callback RangeValueCallback
+ * @param {RangeValue} rangeValue
+ * @returns {boolean}
+ */
+declare class Range {
+  /**
+   * @param {"left" | "right"} side side
+   * @param {boolean} exclusive exclusive
+   * @returns {">" | ">=" | "<" | "<="} operator
+   */
+  static getOperator(
+    side: "left" | "right",
+    exclusive: boolean,
+  ): ">" | ">=" | "<" | "<=";
+  /**
+   * @param {number} value value
+   * @param {boolean} logic is not logic applied
+   * @param {boolean} exclusive is range exclusive
+   * @returns {string} formatted right
+   */
+  static formatRight(value: number, logic: boolean, exclusive: boolean): string;
+  /**
+   * @param {number} value value
+   * @param {boolean} logic is not logic applied
+   * @param {boolean} exclusive is range exclusive
+   * @returns {string} formatted left
+   */
+  static formatLeft(value: number, logic: boolean, exclusive: boolean): string;
+  /**
+   * @param {number} start left side value
+   * @param {number} end right side value
+   * @param {boolean} startExclusive is range exclusive from left side
+   * @param {boolean} endExclusive is range exclusive from right side
+   * @param {boolean} logic is not logic applied
+   * @returns {string} formatted range
+   */
+  static formatRange(
+    start: number,
+    end: number,
+    startExclusive: boolean,
+    endExclusive: boolean,
+    logic: boolean,
+  ): string;
+  /**
+   * @param {Array<RangeValue>} values values
+   * @param {boolean} logic is not logic applied
+   * @returns {RangeValue} computed value and it's exclusive flag
+   */
+  static getRangeValue(values: Array<RangeValue>, logic: boolean): RangeValue;
+  /** @type {Array<RangeValue>} */
+  _left: Array<RangeValue>;
+  /** @type {Array<RangeValue>} */
+  _right: Array<RangeValue>;
+  /**
+   * @param {number} value value
+   * @param {boolean=} exclusive true when exclusive, otherwise false
+   */
+  left(value: number, exclusive?: boolean | undefined): void;
+  /**
+   * @param {number} value value
+   * @param {boolean=} exclusive true when exclusive, otherwise false
+   */
+  right(value: number, exclusive?: boolean | undefined): void;
+  /**
+   * @param {boolean} logic is not logic applied
+   * @returns {string} "smart" range string representation
+   */
+  format(logic?: boolean): string;
+}
+declare namespace Range {
+  export { RangeValue, RangeValueCallback };
+}
+type RangeValue = [number, boolean];
+type RangeValueCallback = (rangeValue: RangeValue) => boolean;

frontend/node_modules/schema-utils/declarations/util/hints.d.ts

@@ -0,0 +1,3 @@
+export function stringHints(schema: Schema, logic: boolean): string[];
+export function numberHints(schema: Schema, logic: boolean): string[];
+export type Schema = import("../validate").Schema;

frontend/node_modules/schema-utils/declarations/util/memorize.d.ts

@@ -0,0 +1,12 @@
+export default memoize;
+export type FunctionReturning<T> = () => T;
+/**
+ * @template T
+ * @typedef {() => T} FunctionReturning
+ */
+/**
+ * @template T
+ * @param {FunctionReturning<T>} fn memorized function
+ * @returns {FunctionReturning<T>} new function
+ */
+declare function memoize<T>(fn: FunctionReturning<T>): FunctionReturning<T>;

frontend/node_modules/schema-utils/declarations/validate.d.ts

@@ -0,0 +1,77 @@
+export { default as ValidationError } from "./ValidationError";
+export type JSONSchema4 = import("json-schema").JSONSchema4;
+export type JSONSchema6 = import("json-schema").JSONSchema6;
+export type JSONSchema7 = import("json-schema").JSONSchema7;
+export type ErrorObject = import("ajv").ErrorObject;
+export type ExtendedSchema = {
+  /**
+   * format minimum
+   */
+  formatMinimum?: (string | number) | undefined;
+  /**
+   * format maximum
+   */
+  formatMaximum?: (string | number) | undefined;
+  /**
+   * format exclusive minimum
+   */
+  formatExclusiveMinimum?: (string | boolean) | undefined;
+  /**
+   * format exclusive maximum
+   */
+  formatExclusiveMaximum?: (string | boolean) | undefined;
+  /**
+   * link
+   */
+  link?: string | undefined;
+  /**
+   * undefined will be resolved as null
+   */
+  undefinedAsNull?: boolean | undefined;
+};
+export type Extend = ExtendedSchema;
+export type Schema = (JSONSchema4 | JSONSchema6 | JSONSchema7) & ExtendedSchema;
+export type SchemaUtilErrorObject = ErrorObject & {
+  children?: Array<ErrorObject>;
+};
+export type PostFormatter = (
+  formattedError: string,
+  error: SchemaUtilErrorObject,
+) => string;
+export type ValidationErrorConfiguration = {
+  /**
+   * name
+   */
+  name?: string | undefined;
+  /**
+   * base data path
+   */
+  baseDataPath?: string | undefined;
+  /**
+   * post formatter
+   */
+  postFormatter?: PostFormatter | undefined;
+};
+/**
+ * @param {Schema} schema schema
+ * @param {Array<object> | object} options options
+ * @param {ValidationErrorConfiguration=} configuration configuration
+ * @returns {void}
+ */
+export function validate(
+  schema: Schema,
+  options: Array<object> | object,
+  configuration?: ValidationErrorConfiguration | undefined,
+): void;
+/**
+ * @returns {void}
+ */
+export function enableValidation(): void;
+/**
+ * @returns {void}
+ */
+export function disableValidation(): void;
+/**
+ * @returns {boolean} true when need validate, otherwise false
+ */
+export function needValidate(): boolean;

frontend/node_modules/schema-utils/node_modules/ajv-keywords/LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2016 Evgeny Poberezkin
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

frontend/node_modules/schema-utils/node_modules/ajv-keywords/README.md

@@ -0,0 +1,745 @@
+# ajv-keywords
+
+Custom JSON-Schema keywords for [Ajv](https://github.com/epoberezkin/ajv) validator
+
+[![build](https://github.com/ajv-validator/ajv-keywords/workflows/build/badge.svg)](https://github.com/ajv-validator/ajv-keywords/actions?query=workflow%3Abuild)
+[![npm](https://img.shields.io/npm/v/ajv-keywords.svg)](https://www.npmjs.com/package/ajv-keywords)
+[![npm downloads](https://img.shields.io/npm/dm/ajv-keywords.svg)](https://www.npmjs.com/package/ajv-keywords)
+[![coverage](https://coveralls.io/repos/github/ajv-validator/ajv-keywords/badge.svg?branch=master)](https://coveralls.io/github/ajv-validator/ajv-keywords?branch=master)
+[![gitter](https://img.shields.io/gitter/room/ajv-validator/ajv.svg)](https://gitter.im/ajv-validator/ajv)
+
+**Please note**: This readme file is for [ajv-keywords v5.0.0](https://github.com/ajv-validator/ajv-keywords/releases/tag/v5.0.0) that should be used with [ajv v8](https://github.com/ajv-validator/ajv).
+
+[ajv-keywords v3](https://github.com/ajv-validator/ajv-keywords/tree/v3) should be used with [ajv v6](https://github.com/ajv-validator/ajv/tree/v6).
+
+## Contents
+
+- [Install](#install)
+- [Usage](#usage)
+- [Keywords](#keywords)
+  - [Types](#types)
+    - [typeof](#typeof)
+    - [instanceof](#instanceof)<sup>\+</sup>
+  - [Keywords for numbers](#keywords-for-numbers)
+    - [range and exclusiveRange](#range-and-exclusiverange)
+  - [Keywords for strings](#keywords-for-strings)
+    - [regexp](#regexp)
+    - [transform](#transform)<sup>\*</sup>
+  - [Keywords for arrays](#keywords-for-arrays)
+    - [uniqueItemProperties](#uniqueitemproperties)<sup>\+</sup>
+  - [Keywords for objects](#keywords-for-objects)
+    - [allRequired](#allrequired)
+    - [anyRequired](#anyrequired)
+    - [oneRequired](#onerequired)
+    - [patternRequired](#patternrequired)
+    - [prohibited](#prohibited)
+    - [deepProperties](#deepproperties)
+    - [deepRequired](#deeprequired)
+    - [dynamicDefaults](#dynamicdefaults)<sup>\*</sup><sup>\+</sup>
+  - [Keywords for all types](#keywords-for-all-types)
+    - [select/selectCases/selectDefault](#selectselectcasesselectdefault)
+- [Security contact](#security-contact)
+- [Open-source software support](#open-source-software-support)
+- [License](#license)
+
+<sup>\*</sup> - keywords that modify data
+<sup>\+</sup> - keywords that are not supported in [standalone validation code](https://github.com/ajv-validator/ajv/blob/master/docs/standalone.md)
+
+## Install
+
+To install version 4 to use with [Ajv v7](https://github.com/ajv-validator/ajv):
+
+```
+npm install ajv-keywords
+```
+
+## Usage
+
+To add all available keywords:
+
+```javascript
+const Ajv = require("ajv")
+const ajv = new Ajv()
+require("ajv-keywords")(ajv)
+
+ajv.validate({instanceof: "RegExp"}, /.*/) // true
+ajv.validate({instanceof: "RegExp"}, ".*") // false
+```
+
+To add a single keyword:
+
+```javascript
+require("ajv-keywords")(ajv, "instanceof")
+```
+
+To add multiple keywords:
+
+```javascript
+require("ajv-keywords")(ajv, ["typeof", "instanceof"])
+```
+
+To add a single keyword directly (to avoid adding unused code):
+
+```javascript
+require("ajv-keywords/dist/keywords/select")(ajv, opts)
+```
+
+To add all keywords via Ajv options:
+
+```javascript
+const ajv = new Ajv({keywords: require("ajv-keywords/dist/definitions")(opts)})
+```
+
+To add one or several keywords via options:
+
+```javascript
+const ajv = new Ajv({
+  keywords: [
+    require("ajv-keywords/dist/definitions/typeof")(),
+    require("ajv-keywords/dist/definitions/instanceof")(),
+    // select exports an array of 3 definitions - see "select" in docs
+    ...require("ajv-keywords/dist/definitions/select")(opts),
+  ],
+})
+```
+
+`opts` is an optional object with a property `defaultMeta` - URI of meta-schema to use for keywords that use subschemas (`select` and `deepProperties`). The default is `"http://json-schema.org/schema"`.
+
+## Keywords
+
+### Types
+
+#### `typeof`
+
+Based on JavaScript `typeof` operation.
+
+The value of the keyword should be a string (`"undefined"`, `"string"`, `"number"`, `"object"`, `"function"`, `"boolean"` or `"symbol"`) or an array of strings.
+
+To pass validation the result of `typeof` operation on the value should be equal to the string (or one of the strings in the array).
+
+```javascript
+ajv.validate({typeof: "undefined"}, undefined) // true
+ajv.validate({typeof: "undefined"}, null) // false
+ajv.validate({typeof: ["undefined", "object"]}, null) // true
+```
+
+#### `instanceof`
+
+Based on JavaScript `instanceof` operation.
+
+The value of the keyword should be a string (`"Object"`, `"Array"`, `"Function"`, `"Number"`, `"String"`, `"Date"`, `"RegExp"` or `"Promise"`) or an array of strings.
+
+To pass validation the result of `data instanceof ...` operation on the value should be true:
+
+```javascript
+ajv.validate({instanceof: "Array"}, []) // true
+ajv.validate({instanceof: "Array"}, {}) // false
+ajv.validate({instanceof: ["Array", "Function"]}, function () {}) // true
+```
+
+You can add your own constructor function to be recognised by this keyword:
+
+```javascript
+class MyClass {}
+const instanceofDef = require("ajv-keywords/dist/definitions/instanceof")
+instanceofDef.CONSTRUCTORS.MyClass = MyClass
+ajv.validate({instanceof: "MyClass"}, new MyClass()) // true
+```
+
+**Please note**: currently `instanceof` is not supported in [standalone validation code](https://github.com/ajv-validator/ajv/blob/master/docs/standalone.md) - it has to be implemented as [`code` keyword](https://github.com/ajv-validator/ajv/blob/master/docs/keywords.md#define-keyword-with-code-generation-function) to support it (PR is welcome).
+
+### Keywords for numbers
+
+#### `range` and `exclusiveRange`
+
+Syntax sugar for the combination of minimum and maximum keywords (or exclusiveMinimum and exclusiveMaximum), also fails schema compilation if there are no numbers in the range.
+
+The value of these keywords must be an array consisting of two numbers, the second must be greater or equal than the first one.
+
+If the validated value is not a number the validation passes, otherwise to pass validation the value should be greater (or equal) than the first number and smaller (or equal) than the second number in the array.
+
+```javascript
+const schema = {type: "number", range: [1, 3]}
+ajv.validate(schema, 1) // true
+ajv.validate(schema, 2) // true
+ajv.validate(schema, 3) // true
+ajv.validate(schema, 0.99) // false
+ajv.validate(schema, 3.01) // false
+
+const schema = {type: "number", exclusiveRange: [1, 3]}
+ajv.validate(schema, 1.01) // true
+ajv.validate(schema, 2) // true
+ajv.validate(schema, 2.99) // true
+ajv.validate(schema, 1) // false
+ajv.validate(schema, 3) // false
+```
+
+### Keywords for strings
+
+#### `regexp`
+
+This keyword allows to use regular expressions with flags in schemas, and also without `"u"` flag when needed (the standard `pattern` keyword does not support flags and implies the presence of `"u"` flag).
+
+This keyword applies only to strings. If the data is not a string, the validation succeeds.
+
+The value of this keyword can be either a string (the result of `regexp.toString()`) or an object with the properties `pattern` and `flags` (the same strings that should be passed to RegExp constructor).
+
+```javascript
+const schema = {
+  type: "object",
+  properties: {
+    foo: {type: "string", regexp: "/foo/i"},
+    bar: {type: "string", regexp: {pattern: "bar", flags: "i"}},
+  },
+}
+
+const validData = {
+  foo: "Food",
+  bar: "Barmen",
+}
+
+const invalidData = {
+  foo: "fog",
+  bar: "bad",
+}
+```
+
+#### `transform`
+
+This keyword allows a string to be modified during validation.
+
+This keyword applies only to strings. If the data is not a string, the `transform` keyword is ignored.
+
+A standalone string cannot be modified, i.e. `data = 'a'; ajv.validate(schema, data);`, because strings are passed by value
+
+**Supported transformations:**
+
+- `trim`: remove whitespace from start and end
+- `trimStart`/`trimLeft`: remove whitespace from start
+- `trimEnd`/`trimRight`: remove whitespace from end
+- `toLowerCase`: convert to lower case
+- `toUpperCase`: convert to upper case
+- `toEnumCase`: change string case to be equal to one of `enum` values in the schema
+
+Transformations are applied in the order they are listed.
+
+Note: `toEnumCase` requires that all allowed values are unique when case insensitive.
+
+**Example: multiple transformations**
+
+```javascript
+require("ajv-keywords")(ajv, "transform")
+
+const schema = {
+  type: "array",
+  items: {
+    type: "string",
+    transform: ["trim", "toLowerCase"],
+  },
+}
+
+const data = ["  MixCase  "]
+ajv.validate(schema, data)
+console.log(data) // ['mixcase']
+```
+
+**Example: `enumcase`**
+
+```javascript
+require("ajv-keywords")(ajv, ["transform"])
+
+const schema = {
+  type: "array",
+  items: {
+    type: "string",
+    transform: ["trim", "toEnumCase"],
+    enum: ["pH"],
+  },
+}
+
+const data = ["ph", " Ph", "PH", "pH "]
+ajv.validate(schema, data)
+console.log(data) // ['pH','pH','pH','pH']
+```
+
+### Keywords for arrays
+
+#### `uniqueItemProperties`
+
+The keyword allows to check that some properties in array items are unique.
+
+This keyword applies only to arrays. If the data is not an array, the validation succeeds.
+
+The value of this keyword must be an array of strings - property names that should have unique values across all items.
+
+```javascript
+const schema = {
+  type: "array",
+  uniqueItemProperties: ["id", "name"],
+}
+
+const validData = [{id: 1}, {id: 2}, {id: 3}]
+
+const invalidData1 = [
+  {id: 1},
+  {id: 1}, // duplicate "id"
+  {id: 3},
+]
+
+const invalidData2 = [
+  {id: 1, name: "taco"},
+  {id: 2, name: "taco"}, // duplicate "name"
+  {id: 3, name: "salsa"},
+]
+```
+
+This keyword is contributed by [@blainesch](https://github.com/blainesch).
+
+**Please note**: currently `uniqueItemProperties` is not supported in [standalone validation code](https://github.com/ajv-validator/ajv/blob/master/docs/standalone.md) - it has to be implemented as [`code` keyword](https://github.com/ajv-validator/ajv/blob/master/docs/keywords.md#define-keyword-with-code-generation-function) to support it (PR is welcome).
+
+### Keywords for objects
+
+#### `allRequired`
+
+This keyword allows to require the presence of all properties used in `properties` keyword in the same schema object.
+
+This keyword applies only to objects. If the data is not an object, the validation succeeds.
+
+The value of this keyword must be boolean.
+
+If the value of the keyword is `false`, the validation succeeds.
+
+If the value of the keyword is `true`, the validation succeeds if the data contains all properties defined in `properties` keyword (in the same schema object).
+
+If the `properties` keyword is not present in the same schema object, schema compilation will throw exception.
+
+```javascript
+const schema = {
+  type: "object",
+  properties: {
+    foo: {type: "number"},
+    bar: {type: "number"},
+  },
+  allRequired: true,
+}
+
+const validData = {foo: 1, bar: 2}
+const alsoValidData = {foo: 1, bar: 2, baz: 3}
+
+const invalidDataList = [{}, {foo: 1}, {bar: 2}]
+```
+
+#### `anyRequired`
+
+This keyword allows to require the presence of any (at least one) property from the list.
+
+This keyword applies only to objects. If the data is not an object, the validation succeeds.
+
+The value of this keyword must be an array of strings, each string being a property name. For data object to be valid at least one of the properties in this array should be present in the object.
+
+```javascript
+const schema = {
+  type: "object",
+  anyRequired: ["foo", "bar"],
+}
+
+const validData = {foo: 1}
+const alsoValidData = {foo: 1, bar: 2}
+
+const invalidDataList = [{}, {baz: 3}]
+```
+
+#### `oneRequired`
+
+This keyword allows to require the presence of only one property from the list.
+
+This keyword applies only to objects. If the data is not an object, the validation succeeds.
+
+The value of this keyword must be an array of strings, each string being a property name. For data object to be valid exactly one of the properties in this array should be present in the object.
+
+```javascript
+const schema = {
+  type: "object",
+  oneRequired: ["foo", "bar"],
+}
+
+const validData = {foo: 1}
+const alsoValidData = {bar: 2, baz: 3}
+
+const invalidDataList = [{}, {baz: 3}, {foo: 1, bar: 2}]
+```
+
+#### `patternRequired`
+
+This keyword allows to require the presence of properties that match some pattern(s).
+
+This keyword applies only to objects. If the data is not an object, the validation succeeds.
+
+The value of this keyword should be an array of strings, each string being a regular expression. For data object to be valid each regular expression in this array should match at least one property name in the data object.
+
+If the array contains multiple regular expressions, more than one expression can match the same property name.
+
+```javascript
+const schema = {
+  type: "object",
+  patternRequired: ["f.*o", "b.*r"],
+}
+
+const validData = {foo: 1, bar: 2}
+const alsoValidData = {foobar: 3}
+
+const invalidDataList = [{}, {foo: 1}, {bar: 2}]
+```
+
+#### `prohibited`
+
+This keyword allows to prohibit that any of the properties in the list is present in the object.
+
+This keyword applies only to objects. If the data is not an object, the validation succeeds.
+
+The value of this keyword should be an array of strings, each string being a property name. For data object to be valid none of the properties in this array should be present in the object.
+
+```javascript
+const schema = {
+  type: "object",
+  prohibited: ["foo", "bar"],
+}
+
+const validData = {baz: 1}
+const alsoValidData = {}
+
+const invalidDataList = [{foo: 1}, {bar: 2}, {foo: 1, bar: 2}]
+```
+
+**Please note**: `{prohibited: ['foo', 'bar']}` is equivalent to `{not: {anyRequired: ['foo', 'bar']}}` (i.e. it has the same validation result for any data).
+
+#### `deepProperties`
+
+This keyword allows to validate deep properties (identified by JSON pointers).
+
+This keyword applies only to objects. If the data is not an object, the validation succeeds.
+
+The value should be an object, where keys are JSON pointers to the data, starting from the current position in data, and the values are JSON schemas. For data object to be valid the value of each JSON pointer should be valid according to the corresponding schema.
+
+```javascript
+const schema = {
+  type: "object",
+  deepProperties: {
+    "/users/1/role": {enum: ["admin"]},
+  },
+}
+
+const validData = {
+  users: [
+    {},
+    {
+      id: 123,
+      role: "admin",
+    },
+  ],
+}
+
+const alsoValidData = {
+  users: {
+    1: {
+      id: 123,
+      role: "admin",
+    },
+  },
+}
+
+const invalidData = {
+  users: [
+    {},
+    {
+      id: 123,
+      role: "user",
+    },
+  ],
+}
+
+const alsoInvalidData = {
+  users: {
+    1: {
+      id: 123,
+      role: "user",
+    },
+  },
+}
+```
+
+#### `deepRequired`
+
+This keyword allows to check that some deep properties (identified by JSON pointers) are available.
+
+This keyword applies only to objects. If the data is not an object, the validation succeeds.
+
+The value should be an array of JSON pointers to the data, starting from the current position in data. For data object to be valid each JSON pointer should be some existing part of the data.
+
+```javascript
+const schema = {
+  type: "object",
+  deepRequired: ["/users/1/role"],
+}
+
+const validData = {
+  users: [
+    {},
+    {
+      id: 123,
+      role: "admin",
+    },
+  ],
+}
+
+const invalidData = {
+  users: [
+    {},
+    {
+      id: 123,
+    },
+  ],
+}
+```
+
+See [json-schema-org/json-schema-spec#203](https://github.com/json-schema-org/json-schema-spec/issues/203#issue-197211916) for an example of the equivalent schema without `deepRequired` keyword.
+
+### Keywords for all types
+
+#### `select`/`selectCases`/`selectDefault`
+
+**Please note**: these keywords are deprecated. It is recommended to use OpenAPI [discriminator](https://ajv.js.org/json-schema.html#discriminator) keyword supported by Ajv v8 instead of `select`.
+
+These keywords allow to choose the schema to validate the data based on the value of some property in the validated data.
+
+These keywords must be present in the same schema object (`selectDefault` is optional).
+
+The value of `select` keyword should be a [\$data reference](https://github.com/ajv-validator/ajv/blob/master/docs/validation.md#data-reference) that points to any primitive JSON type (string, number, boolean or null) in the data that is validated. You can also use a constant of primitive type as the value of this keyword (e.g., for debugging purposes).
+
+The value of `selectCases` keyword must be an object where each property name is a possible string representation of the value of `select` keyword and each property value is a corresponding schema (from draft-06 it can be boolean) that must be used to validate the data.
+
+The value of `selectDefault` keyword is a schema (also can be boolean) that must be used to validate the data in case `selectCases` has no key equal to the stringified value of `select` keyword.
+
+The validation succeeds in one of the following cases:
+
+- the validation of data using selected schema succeeds,
+- none of the schemas is selected for validation,
+- the value of select is undefined (no property in the data that the data reference points to).
+
+If `select` value (in data) is not a primitive type the validation fails.
+
+This keyword correctly tracks evaluated properties and items to work with `unevaluatedProperties` and `unevaluatedItems` keywords - only properties and items from the subschema that was used (one of `selectCases` subschemas or `selectDefault` subschema) are marked as evaluated.
+
+**Please note**: these keywords require Ajv `$data` option to support [\$data reference](https://github.com/ajv-validator/ajv/blob/master/docs/validation.md#data-reference).
+
+```javascript
+require("ajv-keywords")(ajv, "select")
+
+const schema = {
+  type: "object",
+  required: ["kind"],
+  properties: {
+    kind: {type: "string"},
+  },
+  select: {$data: "0/kind"},
+  selectCases: {
+    foo: {
+      required: ["foo"],
+      properties: {
+        kind: {},
+        foo: {type: "string"},
+      },
+      additionalProperties: false,
+    },
+    bar: {
+      required: ["bar"],
+      properties: {
+        kind: {},
+        bar: {type: "number"},
+      },
+      additionalProperties: false,
+    },
+  },
+  selectDefault: {
+    propertyNames: {
+      not: {enum: ["foo", "bar"]},
+    },
+  },
+}
+
+const validDataList = [
+  {kind: "foo", foo: "any"},
+  {kind: "bar", bar: 1},
+  {kind: "anything_else", not_bar_or_foo: "any value"},
+]
+
+const invalidDataList = [
+  {kind: "foo"}, // no property foo
+  {kind: "bar"}, // no property bar
+  {kind: "foo", foo: "any", another: "any value"}, // additional property
+  {kind: "bar", bar: 1, another: "any value"}, // additional property
+  {kind: "anything_else", foo: "any"}, // property foo not allowed
+  {kind: "anything_else", bar: 1}, // property bar not allowed
+]
+```
+
+#### `dynamicDefaults`
+
+This keyword allows to assign dynamic defaults to properties, such as timestamps, unique IDs etc.
+
+This keyword only works if `useDefaults` options is used and not inside `anyOf` keywords etc., in the same way as [default keyword treated by Ajv](https://github.com/epoberezkin/ajv#assigning-defaults).
+
+The keyword should be added on the object level. Its value should be an object with each property corresponding to a property name, in the same way as in standard `properties` keyword. The value of each property can be:
+
+- an identifier of dynamic default function (a string)
+- an object with properties `func` (an identifier) and `args` (an object with parameters that will be passed to this function during schema compilation - see examples).
+
+The properties used in `dynamicDefaults` should not be added to `required` keyword in the same schema (or validation will fail), because unlike `default` this keyword is processed after validation.
+
+There are several predefined dynamic default functions:
+
+- `"timestamp"` - current timestamp in milliseconds
+- `"datetime"` - current date and time as string (ISO, valid according to `date-time` format)
+- `"date"` - current date as string (ISO, valid according to `date` format)
+- `"time"` - current time as string (ISO, valid according to `time` format)
+- `"random"` - pseudo-random number in [0, 1) interval
+- `"randomint"` - pseudo-random integer number. If string is used as a property value, the function will randomly return 0 or 1. If object `{ func: 'randomint', args: { max: N } }` is used then the default will be an integer number in [0, N) interval.
+- `"seq"` - sequential integer number starting from 0. If string is used as a property value, the default sequence will be used. If object `{ func: 'seq', args: { name: 'foo'} }` is used then the sequence with name `"foo"` will be used. Sequences are global, even if different ajv instances are used.
+
+```javascript
+const schema = {
+  type: "object",
+  dynamicDefaults: {
+    ts: "datetime",
+    r: {func: "randomint", args: {max: 100}},
+    id: {func: "seq", args: {name: "id"}},
+  },
+  properties: {
+    ts: {
+      type: "string",
+      format: "date-time",
+    },
+    r: {
+      type: "integer",
+      minimum: 0,
+      exclusiveMaximum: 100,
+    },
+    id: {
+      type: "integer",
+      minimum: 0,
+    },
+  },
+}
+
+const data = {}
+ajv.validate(data) // true
+data // { ts: '2016-12-01T22:07:28.829Z', r: 25, id: 0 }
+
+const data1 = {}
+ajv.validate(data1) // true
+data1 // { ts: '2016-12-01T22:07:29.832Z', r: 68, id: 1 }
+
+ajv.validate(data1) // true
+data1 // didn't change, as all properties were defined
+```
+
+When using the `useDefaults` option value `"empty"`, properties and items equal to `null` or `""` (empty string) will be considered missing and assigned defaults. Use `allOf` [compound keyword](https://github.com/epoberezkin/ajv/blob/master/KEYWORDS.md#compound-keywords) to execute `dynamicDefaults` before validation.
+
+```javascript
+const schema = {
+  type: "object",
+  allOf: [
+    {
+      dynamicDefaults: {
+        ts: "datetime",
+        r: {func: "randomint", args: {min: 5, max: 100}},
+        id: {func: "seq", args: {name: "id"}},
+      },
+    },
+    {
+      properties: {
+        ts: {
+          type: "string",
+        },
+        r: {
+          type: "number",
+          minimum: 5,
+          exclusiveMaximum: 100,
+        },
+        id: {
+          type: "integer",
+          minimum: 0,
+        },
+      },
+    },
+  ],
+}
+
+const data = {ts: "", r: null}
+ajv.validate(data) // true
+data // { ts: '2016-12-01T22:07:28.829Z', r: 25, id: 0 }
+```
+
+You can add your own dynamic default function to be recognised by this keyword:
+
+```javascript
+const uuid = require("uuid")
+
+const def = require("ajv-keywords/dist/definitions/dynamicDefaults")
+def.DEFAULTS.uuid = () => uuid.v4
+
+const schema = {
+  dynamicDefaults: {id: "uuid"},
+  properties: {id: {type: "string", format: "uuid"}},
+}
+
+const data = {}
+ajv.validate(schema, data) // true
+data // { id: 'a1183fbe-697b-4030-9bcc-cfeb282a9150' };
+
+const data1 = {}
+ajv.validate(schema, data1) // true
+data1 // { id: '5b008de7-1669-467a-a5c6-70fa244d7209' }
+```
+
+You also can define dynamic default that accept parameters, e.g. version of uuid:
+
+```javascript
+const uuid = require("uuid")
+
+function getUuid(args) {
+  const version = "v" + ((arvs && args.v) || "4")
+  return uuid[version]
+}
+
+const def = require("ajv-keywords/dist/definitions/dynamicDefaults")
+def.DEFAULTS.uuid = getUuid
+
+const schema = {
+  dynamicDefaults: {
+    id1: "uuid", // v4
+    id2: {func: "uuid", v: 4}, // v4
+    id3: {func: "uuid", v: 1}, // v1
+  },
+}
+```
+
+**Please note**: dynamic default functions are differentiated by the number of parameters they have (`function.length`). Functions that do not expect default must have one non-optional argument so that `function.length` > 0.
+
+`dynamicDefaults` is not supported in [standalone validation code](https://github.com/ajv-validator/ajv/blob/master/docs/standalone.md).
+
+## Security contact
+
+To report a security vulnerability, please use the
+[Tidelift security contact](https://tidelift.com/security).
+Tidelift will coordinate the fix and disclosure.
+
+Please do NOT report security vulnerabilities via GitHub issues.
+
+## Open-source software support
+
+Ajv-keywords is a part of [Tidelift subscription](https://tidelift.com/subscription/pkg/npm-ajv-keywords?utm_source=npm-ajv-keywords&utm_medium=referral&utm_campaign=readme) - it provides a centralised support to open-source software users, in addition to the support provided by software maintainers.
+
+## License
+
+[MIT](https://github.com/epoberezkin/ajv-keywords/blob/master/LICENSE)

frontend/node_modules/schema-utils/node_modules/ajv-keywords/package.json

@@ -0,0 +1,74 @@
+{
+  "name": "ajv-keywords",
+  "version": "5.1.0",
+  "description": "Additional JSON-Schema keywords for Ajv JSON validator",
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
+  "scripts": {
+    "build": "rm -rf dist && tsc",
+    "prepublish": "npm run build",
+    "prettier:write": "prettier --write \"./**/*.{md,json,yaml,js,ts}\"",
+    "prettier:check": "prettier --list-different \"./**/*.{md,json,yaml,js,ts}\"",
+    "test": "npm link && npm link ajv-keywords && npm run eslint && npm run test-cov",
+    "eslint": "eslint \"src/**/*.*s\" \"spec/**/*.*s\"",
+    "test-spec": "jest spec/*.ts",
+    "test-cov": "jest spec/*.ts --coverage"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/epoberezkin/ajv-keywords.git"
+  },
+  "keywords": [
+    "JSON-Schema",
+    "ajv",
+    "keywords"
+  ],
+  "files": [
+    "src",
+    "dist",
+    "ajv-keywords.d.ts"
+  ],
+  "author": "Evgeny Poberezkin",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/epoberezkin/ajv-keywords/issues"
+  },
+  "homepage": "https://github.com/epoberezkin/ajv-keywords#readme",
+  "dependencies": {
+    "fast-deep-equal": "^3.1.3"
+  },
+  "peerDependencies": {
+    "ajv": "^8.8.2"
+  },
+  "devDependencies": {
+    "@ajv-validator/config": "^0.2.3",
+    "@types/chai": "^4.2.14",
+    "@types/jest": "^26.0.14",
+    "@types/node": "^16.4.10",
+    "@types/uuid": "^8.3.0",
+    "@typescript-eslint/eslint-plugin": "^4.4.1",
+    "@typescript-eslint/parser": "^4.4.1",
+    "ajv": "^8.8.2",
+    "ajv-formats": "^2.0.0",
+    "chai": "^4.2.0",
+    "eslint": "^7.2.0",
+    "eslint-config-prettier": "^7.0.0",
+    "husky": "^7.0.1",
+    "jest": "^26.5.3",
+    "json-schema-test": "^2.0.0",
+    "lint-staged": "^11.1.1",
+    "prettier": "^2.1.2",
+    "ts-jest": "^26.4.1",
+    "typescript": "^4.2.0",
+    "uuid": "^8.1.0"
+  },
+  "prettier": "@ajv-validator/config/prettierrc.json",
+  "husky": {
+    "hooks": {
+      "pre-commit": "lint-staged && npm test"
+    }
+  },
+  "lint-staged": {
+    "*.{md,json,yaml,js,ts}": "prettier --write"
+  }
+}

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/definitions/_range.ts

@@ -0,0 +1,30 @@
+import type {MacroKeywordDefinition} from "ajv"
+import type {GetDefinition} from "./_types"
+
+type RangeKwd = "range" | "exclusiveRange"
+
+export default function getRangeDef(keyword: RangeKwd): GetDefinition<MacroKeywordDefinition> {
+  return () => ({
+    keyword,
+    type: "number",
+    schemaType: "array",
+    macro: function ([min, max]: [number, number]) {
+      validateRangeSchema(min, max)
+      return keyword === "range"
+        ? {minimum: min, maximum: max}
+        : {exclusiveMinimum: min, exclusiveMaximum: max}
+    },
+    metaSchema: {
+      type: "array",
+      minItems: 2,
+      maxItems: 2,
+      items: {type: "number"},
+    },
+  })
+
+  function validateRangeSchema(min: number, max: number): void {
+    if (min > max || (keyword === "exclusiveRange" && min === max)) {
+      throw new Error("There are no numbers in range")
+    }
+  }
+}

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/definitions/_required.ts

@@ -0,0 +1,24 @@
+import type {MacroKeywordDefinition} from "ajv"
+import type {GetDefinition} from "./_types"
+
+type RequiredKwd = "anyRequired" | "oneRequired"
+
+export default function getRequiredDef(
+  keyword: RequiredKwd
+): GetDefinition<MacroKeywordDefinition> {
+  return () => ({
+    keyword,
+    type: "object",
+    schemaType: "array",
+    macro(schema: string[]) {
+      if (schema.length === 0) return true
+      if (schema.length === 1) return {required: schema}
+      const comb = keyword === "anyRequired" ? "anyOf" : "oneOf"
+      return {[comb]: schema.map((p) => ({required: [p]}))}
+    },
+    metaSchema: {
+      type: "array",
+      items: {type: "string"},
+    },
+  })
+}

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/definitions/_types.ts

@@ -0,0 +1,7 @@
+import type {KeywordDefinition} from "ajv"
+
+export interface DefinitionOptions {
+  defaultMeta?: string | boolean
+}
+
+export type GetDefinition<T extends KeywordDefinition> = (opts?: DefinitionOptions) => T

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/definitions/_util.ts

@@ -0,0 +1,22 @@
+import type {DefinitionOptions} from "./_types"
+import type {SchemaObject, KeywordCxt, Name} from "ajv"
+import {_} from "ajv/dist/compile/codegen"
+
+const META_SCHEMA_ID = "http://json-schema.org/schema"
+
+export function metaSchemaRef({defaultMeta}: DefinitionOptions = {}): SchemaObject {
+  return defaultMeta === false ? {} : {$ref: defaultMeta || META_SCHEMA_ID}
+}
+
+export function usePattern(
+  {gen, it: {opts}}: KeywordCxt,
+  pattern: string,
+  flags = opts.unicodeRegExp ? "u" : ""
+): Name {
+  const rx = new RegExp(pattern, flags)
+  return gen.scopeValue("pattern", {
+    key: rx.toString(),
+    ref: rx,
+    code: _`new RegExp(${pattern}, ${flags})`,
+  })
+}

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/definitions/allRequired.ts

@@ -0,0 +1,18 @@
+import type {MacroKeywordDefinition} from "ajv"
+
+export default function getDef(): MacroKeywordDefinition {
+  return {
+    keyword: "allRequired",
+    type: "object",
+    schemaType: "boolean",
+    macro(schema: boolean, parentSchema) {
+      if (!schema) return true
+      const required = Object.keys(parentSchema.properties)
+      if (required.length === 0) return true
+      return {required}
+    },
+    dependencies: ["properties"],
+  }
+}
+
+module.exports = getDef

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/definitions/anyRequired.ts

@@ -0,0 +1,8 @@
+import type {MacroKeywordDefinition} from "ajv"
+import type {GetDefinition} from "./_types"
+import getRequiredDef from "./_required"
+
+const getDef: GetDefinition<MacroKeywordDefinition> = getRequiredDef("anyRequired")
+
+export default getDef
+module.exports = getDef

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/definitions/deepProperties.ts

@@ -0,0 +1,52 @@
+import type {MacroKeywordDefinition, SchemaObject, Schema} from "ajv"
+import type {DefinitionOptions} from "./_types"
+import {metaSchemaRef} from "./_util"
+
+export default function getDef(opts?: DefinitionOptions): MacroKeywordDefinition {
+  return {
+    keyword: "deepProperties",
+    type: "object",
+    schemaType: "object",
+    macro: function (schema: Record<string, SchemaObject>) {
+      const allOf = []
+      for (const pointer in schema) allOf.push(getSchema(pointer, schema[pointer]))
+      return {allOf}
+    },
+    metaSchema: {
+      type: "object",
+      propertyNames: {type: "string", format: "json-pointer"},
+      additionalProperties: metaSchemaRef(opts),
+    },
+  }
+}
+
+function getSchema(jsonPointer: string, schema: SchemaObject): SchemaObject {
+  const segments = jsonPointer.split("/")
+  const rootSchema: SchemaObject = {}
+  let pointerSchema: SchemaObject = rootSchema
+  for (let i = 1; i < segments.length; i++) {
+    let segment: string = segments[i]
+    const isLast = i === segments.length - 1
+    segment = unescapeJsonPointer(segment)
+    const properties: Record<string, Schema> = (pointerSchema.properties = {})
+    let items: SchemaObject[] | undefined
+    if (/[0-9]+/.test(segment)) {
+      let count = +segment
+      items = pointerSchema.items = []
+      pointerSchema.type = ["object", "array"]
+      while (count--) items.push({})
+    } else {
+      pointerSchema.type = "object"
+    }
+    pointerSchema = isLast ? schema : {}
+    properties[segment] = pointerSchema
+    if (items) items.push(pointerSchema)
+  }
+  return rootSchema
+}
+
+function unescapeJsonPointer(str: string): string {
+  return str.replace(/~1/g, "/").replace(/~0/g, "~")
+}
+
+module.exports = getDef

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/definitions/deepRequired.ts

@@ -0,0 +1,35 @@
+import type {CodeKeywordDefinition, KeywordCxt} from "ajv"
+import {_, or, and, getProperty, Code} from "ajv/dist/compile/codegen"
+
+export default function getDef(): CodeKeywordDefinition {
+  return {
+    keyword: "deepRequired",
+    type: "object",
+    schemaType: "array",
+    code(ctx: KeywordCxt) {
+      const {schema, data} = ctx
+      const props = (schema as string[]).map((jp: string) => _`(${getData(jp)}) === undefined`)
+      ctx.fail(or(...props))
+
+      function getData(jsonPointer: string): Code {
+        if (jsonPointer === "") throw new Error("empty JSON pointer not allowed")
+        const segments = jsonPointer.split("/")
+        let x: Code = data
+        const xs = segments.map((s, i) =>
+          i ? (x = _`${x}${getProperty(unescapeJPSegment(s))}`) : x
+        )
+        return and(...xs)
+      }
+    },
+    metaSchema: {
+      type: "array",
+      items: {type: "string", format: "json-pointer"},
+    },
+  }
+}
+
+function unescapeJPSegment(s: string): string {
+  return s.replace(/~1/g, "/").replace(/~0/g, "~")
+}
+
+module.exports = getDef

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/definitions/dynamicDefaults.ts

@@ -0,0 +1,98 @@
+import type {FuncKeywordDefinition, SchemaCxt} from "ajv"
+
+const sequences: Record<string, number | undefined> = {}
+
+export type DynamicDefaultFunc = (args?: Record<string, any>) => () => any
+
+const DEFAULTS: Record<string, DynamicDefaultFunc | undefined> = {
+  timestamp: () => () => Date.now(),
+  datetime: () => () => new Date().toISOString(),
+  date: () => () => new Date().toISOString().slice(0, 10),
+  time: () => () => new Date().toISOString().slice(11),
+  random: () => () => Math.random(),
+  randomint: (args?: {max?: number}) => {
+    const max = args?.max ?? 2
+    return () => Math.floor(Math.random() * max)
+  },
+  seq: (args?: {name?: string}) => {
+    const name = args?.name ?? ""
+    sequences[name] ||= 0
+    return () => (sequences[name] as number)++
+  },
+}
+
+interface PropertyDefaultSchema {
+  func: string
+  args: Record<string, any>
+}
+
+type DefaultSchema = Record<string, string | PropertyDefaultSchema | undefined>
+
+const getDef: (() => FuncKeywordDefinition) & {
+  DEFAULTS: typeof DEFAULTS
+} = Object.assign(_getDef, {DEFAULTS})
+
+function _getDef(): FuncKeywordDefinition {
+  return {
+    keyword: "dynamicDefaults",
+    type: "object",
+    schemaType: ["string", "object"],
+    modifying: true,
+    valid: true,
+    compile(schema: DefaultSchema, _parentSchema, it: SchemaCxt) {
+      if (!it.opts.useDefaults || it.compositeRule) return () => true
+      const fs: Record<string, () => any> = {}
+      for (const key in schema) fs[key] = getDefault(schema[key])
+      const empty = it.opts.useDefaults === "empty"
+
+      return (data: Record<string, any>) => {
+        for (const prop in schema) {
+          if (data[prop] === undefined || (empty && (data[prop] === null || data[prop] === ""))) {
+            data[prop] = fs[prop]()
+          }
+        }
+        return true
+      }
+    },
+    metaSchema: {
+      type: "object",
+      additionalProperties: {
+        anyOf: [
+          {type: "string"},
+          {
+            type: "object",
+            additionalProperties: false,
+            required: ["func", "args"],
+            properties: {
+              func: {type: "string"},
+              args: {type: "object"},
+            },
+          },
+        ],
+      },
+    },
+  }
+}
+
+function getDefault(d: string | PropertyDefaultSchema | undefined): () => any {
+  return typeof d == "object" ? getObjDefault(d) : getStrDefault(d)
+}
+
+function getObjDefault({func, args}: PropertyDefaultSchema): () => any {
+  const def = DEFAULTS[func]
+  assertDefined(func, def)
+  return def(args)
+}
+
+function getStrDefault(d = ""): () => any {
+  const def = DEFAULTS[d]
+  assertDefined(d, def)
+  return def()
+}
+
+function assertDefined(name: string, def?: DynamicDefaultFunc): asserts def is DynamicDefaultFunc {
+  if (!def) throw new Error(`invalid "dynamicDefaults" keyword property value: ${name}`)
+}
+
+export default getDef
+module.exports = getDef

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/definitions/exclusiveRange.ts

@@ -0,0 +1,8 @@
+import type {MacroKeywordDefinition} from "ajv"
+import type {GetDefinition} from "./_types"
+import getRangeDef from "./_range"
+
+const getDef: GetDefinition<MacroKeywordDefinition> = getRangeDef("exclusiveRange")
+
+export default getDef
+module.exports = getDef

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/definitions/index.ts

@@ -0,0 +1,61 @@
+import type {Vocabulary, KeywordDefinition, ErrorNoParams} from "ajv"
+import type {DefinitionOptions, GetDefinition} from "./_types"
+import typeofDef from "./typeof"
+import instanceofDef from "./instanceof"
+import range from "./range"
+import exclusiveRange from "./exclusiveRange"
+import regexp from "./regexp"
+import transform from "./transform"
+import uniqueItemProperties from "./uniqueItemProperties"
+import allRequired from "./allRequired"
+import anyRequired from "./anyRequired"
+import oneRequired from "./oneRequired"
+import patternRequired, {PatternRequiredError} from "./patternRequired"
+import prohibited from "./prohibited"
+import deepProperties from "./deepProperties"
+import deepRequired from "./deepRequired"
+import dynamicDefaults from "./dynamicDefaults"
+import selectDef, {SelectError} from "./select"
+
+const definitions: GetDefinition<KeywordDefinition>[] = [
+  typeofDef,
+  instanceofDef,
+  range,
+  exclusiveRange,
+  regexp,
+  transform,
+  uniqueItemProperties,
+  allRequired,
+  anyRequired,
+  oneRequired,
+  patternRequired,
+  prohibited,
+  deepProperties,
+  deepRequired,
+  dynamicDefaults,
+]
+
+export default function ajvKeywords(opts?: DefinitionOptions): Vocabulary {
+  return definitions.map((d) => d(opts)).concat(selectDef(opts))
+}
+
+export type AjvKeywordsError =
+  | PatternRequiredError
+  | SelectError
+  | ErrorNoParams<
+      | "range"
+      | "exclusiveRange"
+      | "anyRequired"
+      | "oneRequired"
+      | "allRequired"
+      | "deepProperties"
+      | "deepRequired"
+      | "dynamicDefaults"
+      | "instanceof"
+      | "prohibited"
+      | "regexp"
+      | "transform"
+      | "uniqueItemProperties"
+    >
+
+module.exports = ajvKeywords

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/definitions/instanceof.ts

@@ -0,0 +1,61 @@
+import type {FuncKeywordDefinition} from "ajv"
+
+type Constructor = new (...args: any[]) => any
+
+const CONSTRUCTORS: Record<string, Constructor | undefined> = {
+  Object,
+  Array,
+  Function,
+  Number,
+  String,
+  Date,
+  RegExp,
+}
+
+/* istanbul ignore else */
+if (typeof Buffer != "undefined") CONSTRUCTORS.Buffer = Buffer
+
+/* istanbul ignore else */
+if (typeof Promise != "undefined") CONSTRUCTORS.Promise = Promise
+
+const getDef: (() => FuncKeywordDefinition) & {
+  CONSTRUCTORS: typeof CONSTRUCTORS
+} = Object.assign(_getDef, {CONSTRUCTORS})
+
+function _getDef(): FuncKeywordDefinition {
+  return {
+    keyword: "instanceof",
+    schemaType: ["string", "array"],
+    compile(schema: string | string[]) {
+      if (typeof schema == "string") {
+        const C = getConstructor(schema)
+        return (data) => data instanceof C
+      }
+
+      if (Array.isArray(schema)) {
+        const constructors = schema.map(getConstructor)
+        return (data) => {
+          for (const C of constructors) {
+            if (data instanceof C) return true
+          }
+          return false
+        }
+      }
+
+      /* istanbul ignore next */
+      throw new Error("ajv implementation error")
+    },
+    metaSchema: {
+      anyOf: [{type: "string"}, {type: "array", items: {type: "string"}}],
+    },
+  }
+}
+
+function getConstructor(c: string): Constructor {
+  const C = CONSTRUCTORS[c]
+  if (C) return C
+  throw new Error(`invalid "instanceof" keyword value ${c}`)
+}
+
+export default getDef
+module.exports = getDef

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/definitions/oneRequired.ts

@@ -0,0 +1,8 @@
+import type {MacroKeywordDefinition} from "ajv"
+import type {GetDefinition} from "./_types"
+import getRequiredDef from "./_required"
+
+const getDef: GetDefinition<MacroKeywordDefinition> = getRequiredDef("oneRequired")
+
+export default getDef
+module.exports = getDef

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/definitions/patternRequired.ts

@@ -0,0 +1,46 @@
+import type {CodeKeywordDefinition, KeywordCxt, KeywordErrorDefinition, ErrorObject} from "ajv"
+import {_, str, and} from "ajv/dist/compile/codegen"
+import {usePattern} from "./_util"
+
+export type PatternRequiredError = ErrorObject<"patternRequired", {missingPattern: string}>
+
+const error: KeywordErrorDefinition = {
+  message: ({params: {missingPattern}}) =>
+    str`should have property matching pattern '${missingPattern}'`,
+  params: ({params: {missingPattern}}) => _`{missingPattern: ${missingPattern}}`,
+}
+
+export default function getDef(): CodeKeywordDefinition {
+  return {
+    keyword: "patternRequired",
+    type: "object",
+    schemaType: "array",
+    error,
+    code(cxt: KeywordCxt) {
+      const {gen, schema, data} = cxt
+      if (schema.length === 0) return
+      const valid = gen.let("valid", true)
+      for (const pat of schema) validateProperties(pat)
+
+      function validateProperties(pattern: string): void {
+        const matched = gen.let("matched", false)
+
+        gen.forIn("key", data, (key) => {
+          gen.assign(matched, _`${usePattern(cxt, pattern)}.test(${key})`)
+          gen.if(matched, () => gen.break())
+        })
+
+        cxt.setParams({missingPattern: pattern})
+        gen.assign(valid, and(valid, matched))
+        cxt.pass(valid)
+      }
+    },
+    metaSchema: {
+      type: "array",
+      items: {type: "string", format: "regex"},
+      uniqueItems: true,
+    },
+  }
+}
+
+module.exports = getDef

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/definitions/prohibited.ts

@@ -0,0 +1,20 @@
+import type {MacroKeywordDefinition} from "ajv"
+
+export default function getDef(): MacroKeywordDefinition {
+  return {
+    keyword: "prohibited",
+    type: "object",
+    schemaType: "array",
+    macro: function (schema: string[]) {
+      if (schema.length === 0) return true
+      if (schema.length === 1) return {not: {required: schema}}
+      return {not: {anyOf: schema.map((p) => ({required: [p]}))}}
+    },
+    metaSchema: {
+      type: "array",
+      items: {type: "string"},
+    },
+  }
+}
+
+module.exports = getDef

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/definitions/range.ts

@@ -0,0 +1,8 @@
+import type {MacroKeywordDefinition} from "ajv"
+import type {GetDefinition} from "./_types"
+import getRangeDef from "./_range"
+
+const getDef: GetDefinition<MacroKeywordDefinition> = getRangeDef("range")
+
+export default getDef
+module.exports = getDef

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/definitions/regexp.ts

@@ -0,0 +1,45 @@
+import type {CodeKeywordDefinition, KeywordCxt, JSONSchemaType, Name} from "ajv"
+import {_} from "ajv/dist/compile/codegen"
+import {usePattern} from "./_util"
+
+interface RegexpSchema {
+  pattern: string
+  flags?: string
+}
+
+const regexpMetaSchema: JSONSchemaType<RegexpSchema> = {
+  type: "object",
+  properties: {
+    pattern: {type: "string"},
+    flags: {type: "string", nullable: true},
+  },
+  required: ["pattern"],
+  additionalProperties: false,
+}
+
+const metaRegexp = /^\/(.*)\/([gimuy]*)$/
+
+export default function getDef(): CodeKeywordDefinition {
+  return {
+    keyword: "regexp",
+    type: "string",
+    schemaType: ["string", "object"],
+    code(cxt: KeywordCxt) {
+      const {data, schema} = cxt
+      const regx = getRegExp(schema)
+      cxt.pass(_`${regx}.test(${data})`)
+
+      function getRegExp(sch: string | RegexpSchema): Name {
+        if (typeof sch == "object") return usePattern(cxt, sch.pattern, sch.flags)
+        const rx = metaRegexp.exec(sch)
+        if (rx) return usePattern(cxt, rx[1], rx[2])
+        throw new Error("cannot parse string into RegExp")
+      }
+    },
+    metaSchema: {
+      anyOf: [{type: "string"}, regexpMetaSchema],
+    },
+  }
+}
+
+module.exports = getDef

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/definitions/select.ts

@@ -0,0 +1,69 @@
+import type {KeywordDefinition, KeywordErrorDefinition, KeywordCxt, ErrorObject} from "ajv"
+import {_, str, nil, Name} from "ajv/dist/compile/codegen"
+import type {DefinitionOptions} from "./_types"
+import {metaSchemaRef} from "./_util"
+
+export type SelectError = ErrorObject<"select", {failingCase?: string; failingDefault?: true}>
+
+const error: KeywordErrorDefinition = {
+  message: ({params: {schemaProp}}) =>
+    schemaProp
+      ? str`should match case "${schemaProp}" schema`
+      : str`should match default case schema`,
+  params: ({params: {schemaProp}}) =>
+    schemaProp ? _`{failingCase: ${schemaProp}}` : _`{failingDefault: true}`,
+}
+
+export default function getDef(opts?: DefinitionOptions): KeywordDefinition[] {
+  const metaSchema = metaSchemaRef(opts)
+
+  return [
+    {
+      keyword: "select",
+      schemaType: ["string", "number", "boolean", "null"],
+      $data: true,
+      error,
+      dependencies: ["selectCases"],
+      code(cxt: KeywordCxt) {
+        const {gen, schemaCode, parentSchema} = cxt
+        cxt.block$data(nil, () => {
+          const valid = gen.let("valid", true)
+          const schValid = gen.name("_valid")
+          const value = gen.const("value", _`${schemaCode} === null ? "null" : ${schemaCode}`)
+          gen.if(false) // optimizer should remove it from generated code
+          for (const schemaProp in parentSchema.selectCases) {
+            cxt.setParams({schemaProp})
+            gen.elseIf(_`"" + ${value} == ${schemaProp}`) // intentional ==, to match numbers and booleans
+            const schCxt = cxt.subschema({keyword: "selectCases", schemaProp}, schValid)
+            cxt.mergeEvaluated(schCxt, Name)
+            gen.assign(valid, schValid)
+          }
+          gen.else()
+          if (parentSchema.selectDefault !== undefined) {
+            cxt.setParams({schemaProp: undefined})
+            const schCxt = cxt.subschema({keyword: "selectDefault"}, schValid)
+            cxt.mergeEvaluated(schCxt, Name)
+            gen.assign(valid, schValid)
+          }
+          gen.endIf()
+          cxt.pass(valid)
+        })
+      },
+    },
+    {
+      keyword: "selectCases",
+      dependencies: ["select"],
+      metaSchema: {
+        type: "object",
+        additionalProperties: metaSchema,
+      },
+    },
+    {
+      keyword: "selectDefault",
+      dependencies: ["select", "selectCases"],
+      metaSchema,
+    },
+  ]
+}
+
+module.exports = getDef

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/definitions/transform.ts

@@ -0,0 +1,98 @@
+import type {CodeKeywordDefinition, AnySchemaObject, KeywordCxt, Code, Name} from "ajv"
+import {_, stringify, getProperty} from "ajv/dist/compile/codegen"
+
+type TransformName =
+  | "trimStart"
+  | "trimEnd"
+  | "trimLeft"
+  | "trimRight"
+  | "trim"
+  | "toLowerCase"
+  | "toUpperCase"
+  | "toEnumCase"
+
+interface TransformConfig {
+  hash: Record<string, string | undefined>
+}
+
+type Transform = (s: string, cfg?: TransformConfig) => string
+
+const transform: {[key in TransformName]: Transform} = {
+  trimStart: (s) => s.trimStart(),
+  trimEnd: (s) => s.trimEnd(),
+  trimLeft: (s) => s.trimStart(),
+  trimRight: (s) => s.trimEnd(),
+  trim: (s) => s.trim(),
+  toLowerCase: (s) => s.toLowerCase(),
+  toUpperCase: (s) => s.toUpperCase(),
+  toEnumCase: (s, cfg) => cfg?.hash[configKey(s)] || s,
+}
+
+const getDef: (() => CodeKeywordDefinition) & {
+  transform: typeof transform
+} = Object.assign(_getDef, {transform})
+
+function _getDef(): CodeKeywordDefinition {
+  return {
+    keyword: "transform",
+    schemaType: "array",
+    before: "enum",
+    code(cxt: KeywordCxt) {
+      const {gen, data, schema, parentSchema, it} = cxt
+      const {parentData, parentDataProperty} = it
+      const tNames: string[] = schema
+      if (!tNames.length) return
+      let cfg: Name | undefined
+      if (tNames.includes("toEnumCase")) {
+        const config = getEnumCaseCfg(parentSchema)
+        cfg = gen.scopeValue("obj", {ref: config, code: stringify(config)})
+      }
+      gen.if(_`typeof ${data} == "string" && ${parentData} !== undefined`, () => {
+        gen.assign(data, transformExpr(tNames.slice()))
+        gen.assign(_`${parentData}[${parentDataProperty}]`, data)
+      })
+
+      function transformExpr(ts: string[]): Code {
+        if (!ts.length) return data
+        const t = ts.pop() as string
+        if (!(t in transform)) throw new Error(`transform: unknown transformation ${t}`)
+        const func = gen.scopeValue("func", {
+          ref: transform[t as TransformName],
+          code: _`require("ajv-keywords/dist/definitions/transform").transform${getProperty(t)}`,
+        })
+        const arg = transformExpr(ts)
+        return cfg && t === "toEnumCase" ? _`${func}(${arg}, ${cfg})` : _`${func}(${arg})`
+      }
+    },
+    metaSchema: {
+      type: "array",
+      items: {type: "string", enum: Object.keys(transform)},
+    },
+  }
+}
+
+function getEnumCaseCfg(parentSchema: AnySchemaObject): TransformConfig {
+  // build hash table to enum values
+  const cfg: TransformConfig = {hash: {}}
+
+  // requires `enum` in the same schema as transform
+  if (!parentSchema.enum) throw new Error('transform: "toEnumCase" requires "enum"')
+  for (const v of parentSchema.enum) {
+    if (typeof v !== "string") continue
+    const k = configKey(v)
+    // requires all `enum` values have unique keys
+    if (cfg.hash[k]) {
+      throw new Error('transform: "toEnumCase" requires all lowercased "enum" values to be unique')
+    }
+    cfg.hash[k] = v
+  }
+
+  return cfg
+}
+
+function configKey(s: string): string {
+  return s.toLowerCase()
+}
+
+export default getDef
+module.exports = getDef

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/definitions/typeof.ts

@@ -0,0 +1,27 @@
+import type {CodeKeywordDefinition, KeywordCxt} from "ajv"
+import {_} from "ajv/dist/compile/codegen"
+
+const TYPES = ["undefined", "string", "number", "object", "function", "boolean", "symbol"]
+
+export default function getDef(): CodeKeywordDefinition {
+  return {
+    keyword: "typeof",
+    schemaType: ["string", "array"],
+    code(cxt: KeywordCxt) {
+      const {data, schema, schemaValue} = cxt
+      cxt.fail(
+        typeof schema == "string"
+          ? _`typeof ${data} != ${schema}`
+          : _`${schemaValue}.indexOf(typeof ${data}) < 0`
+      )
+    },
+    metaSchema: {
+      anyOf: [
+        {type: "string", enum: TYPES},
+        {type: "array", items: {type: "string", enum: TYPES}},
+      ],
+    },
+  }
+}
+
+module.exports = getDef

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/definitions/uniqueItemProperties.ts

@@ -0,0 +1,58 @@
+import type {FuncKeywordDefinition, AnySchemaObject} from "ajv"
+import equal = require("fast-deep-equal")
+
+const SCALAR_TYPES = ["number", "integer", "string", "boolean", "null"]
+
+export default function getDef(): FuncKeywordDefinition {
+  return {
+    keyword: "uniqueItemProperties",
+    type: "array",
+    schemaType: "array",
+    compile(keys: string[], parentSchema: AnySchemaObject) {
+      const scalar = getScalarKeys(keys, parentSchema)
+
+      return (data) => {
+        if (data.length <= 1) return true
+        for (let k = 0; k < keys.length; k++) {
+          const key = keys[k]
+          if (scalar[k]) {
+            const hash: Record<string, any> = {}
+            for (const x of data) {
+              if (!x || typeof x != "object") continue
+              let p = x[key]
+              if (p && typeof p == "object") continue
+              if (typeof p == "string") p = '"' + p
+              if (hash[p]) return false
+              hash[p] = true
+            }
+          } else {
+            for (let i = data.length; i--; ) {
+              const x = data[i]
+              if (!x || typeof x != "object") continue
+              for (let j = i; j--; ) {
+                const y = data[j]
+                if (y && typeof y == "object" && equal(x[key], y[key])) return false
+              }
+            }
+          }
+        }
+        return true
+      }
+    },
+    metaSchema: {
+      type: "array",
+      items: {type: "string"},
+    },
+  }
+}
+
+function getScalarKeys(keys: string[], schema: AnySchemaObject): boolean[] {
+  return keys.map((key) => {
+    const t = schema.items?.properties?.[key]?.type
+    return Array.isArray(t)
+      ? !t.includes("object") && !t.includes("array")
+      : SCALAR_TYPES.includes(t)
+  })
+}
+
+module.exports = getDef

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/index.ts

@@ -0,0 +1,32 @@
+import type Ajv from "ajv"
+import type {Plugin} from "ajv"
+import plugins from "./keywords"
+
+export {AjvKeywordsError} from "./definitions"
+
+const ajvKeywords: Plugin<string | string[]> = (ajv: Ajv, keyword?: string | string[]): Ajv => {
+  if (Array.isArray(keyword)) {
+    for (const k of keyword) get(k)(ajv)
+    return ajv
+  }
+  if (keyword) {
+    get(keyword)(ajv)
+    return ajv
+  }
+  for (keyword in plugins) get(keyword)(ajv)
+  return ajv
+}
+
+ajvKeywords.get = get
+
+function get(keyword: string): Plugin<any> {
+  const defFunc = plugins[keyword]
+  if (!defFunc) throw new Error("Unknown keyword " + keyword)
+  return defFunc
+}
+
+export default ajvKeywords
+module.exports = ajvKeywords
+
+// eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
+module.exports.default = ajvKeywords

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/keywords/allRequired.ts

@@ -0,0 +1,7 @@
+import type {Plugin} from "ajv"
+import getDef from "../definitions/allRequired"
+
+const allRequired: Plugin<undefined> = (ajv) => ajv.addKeyword(getDef())
+
+export default allRequired
+module.exports = allRequired

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/keywords/anyRequired.ts

@@ -0,0 +1,7 @@
+import type {Plugin} from "ajv"
+import getDef from "../definitions/anyRequired"
+
+const anyRequired: Plugin<undefined> = (ajv) => ajv.addKeyword(getDef())
+
+export default anyRequired
+module.exports = anyRequired

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/keywords/deepProperties.ts

@@ -0,0 +1,9 @@
+import type {Plugin} from "ajv"
+import getDef from "../definitions/deepProperties"
+import type {DefinitionOptions} from "../definitions/_types"
+
+const deepProperties: Plugin<DefinitionOptions> = (ajv, opts?: DefinitionOptions) =>
+  ajv.addKeyword(getDef(opts))
+
+export default deepProperties
+module.exports = deepProperties

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/keywords/deepRequired.ts

@@ -0,0 +1,7 @@
+import type {Plugin} from "ajv"
+import getDef from "../definitions/deepRequired"
+
+const deepRequired: Plugin<undefined> = (ajv) => ajv.addKeyword(getDef())
+
+export default deepRequired
+module.exports = deepRequired

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/keywords/dynamicDefaults.ts

@@ -0,0 +1,7 @@
+import type {Plugin} from "ajv"
+import getDef from "../definitions/dynamicDefaults"
+
+const dynamicDefaults: Plugin<undefined> = (ajv) => ajv.addKeyword(getDef())
+
+export default dynamicDefaults
+module.exports = dynamicDefaults

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/keywords/exclusiveRange.ts

@@ -0,0 +1,7 @@
+import type {Plugin} from "ajv"
+import getDef from "../definitions/exclusiveRange"
+
+const exclusiveRange: Plugin<undefined> = (ajv) => ajv.addKeyword(getDef())
+
+export default exclusiveRange
+module.exports = exclusiveRange

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/keywords/index.ts

@@ -0,0 +1,40 @@
+import type {Plugin} from "ajv"
+import typeofPlugin from "./typeof"
+import instanceofPlugin from "./instanceof"
+import range from "./range"
+import exclusiveRange from "./exclusiveRange"
+import regexp from "./regexp"
+import transform from "./transform"
+import uniqueItemProperties from "./uniqueItemProperties"
+import allRequired from "./allRequired"
+import anyRequired from "./anyRequired"
+import oneRequired from "./oneRequired"
+import patternRequired from "./patternRequired"
+import prohibited from "./prohibited"
+import deepProperties from "./deepProperties"
+import deepRequired from "./deepRequired"
+import dynamicDefaults from "./dynamicDefaults"
+import select from "./select"
+
+// TODO type
+const ajvKeywords: Record<string, Plugin<any> | undefined> = {
+  typeof: typeofPlugin,
+  instanceof: instanceofPlugin,
+  range,
+  exclusiveRange,
+  regexp,
+  transform,
+  uniqueItemProperties,
+  allRequired,
+  anyRequired,
+  oneRequired,
+  patternRequired,
+  prohibited,
+  deepProperties,
+  deepRequired,
+  dynamicDefaults,
+  select,
+}
+
+export default ajvKeywords
+module.exports = ajvKeywords

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/keywords/instanceof.ts

@@ -0,0 +1,7 @@
+import type {Plugin} from "ajv"
+import getDef from "../definitions/instanceof"
+
+const instanceofPlugin: Plugin<undefined> = (ajv) => ajv.addKeyword(getDef())
+
+export default instanceofPlugin
+module.exports = instanceofPlugin

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/keywords/oneRequired.ts

@@ -0,0 +1,7 @@
+import type {Plugin} from "ajv"
+import getDef from "../definitions/oneRequired"
+
+const oneRequired: Plugin<undefined> = (ajv) => ajv.addKeyword(getDef())
+
+export default oneRequired
+module.exports = oneRequired

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/keywords/patternRequired.ts

@@ -0,0 +1,7 @@
+import type {Plugin} from "ajv"
+import getDef from "../definitions/patternRequired"
+
+const patternRequired: Plugin<undefined> = (ajv) => ajv.addKeyword(getDef())
+
+export default patternRequired
+module.exports = patternRequired

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/keywords/prohibited.ts

@@ -0,0 +1,7 @@
+import type {Plugin} from "ajv"
+import getDef from "../definitions/prohibited"
+
+const prohibited: Plugin<undefined> = (ajv) => ajv.addKeyword(getDef())
+
+export default prohibited
+module.exports = prohibited

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/keywords/range.ts

@@ -0,0 +1,7 @@
+import type {Plugin} from "ajv"
+import getDef from "../definitions/range"
+
+const range: Plugin<undefined> = (ajv) => ajv.addKeyword(getDef())
+
+export default range
+module.exports = range

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/keywords/regexp.ts

@@ -0,0 +1,7 @@
+import type {Plugin} from "ajv"
+import getDef from "../definitions/regexp"
+
+const regexp: Plugin<undefined> = (ajv) => ajv.addKeyword(getDef())
+
+export default regexp
+module.exports = regexp

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/keywords/select.ts

@@ -0,0 +1,11 @@
+import type {Plugin} from "ajv"
+import getDefs from "../definitions/select"
+import type {DefinitionOptions} from "../definitions/_types"
+
+const select: Plugin<DefinitionOptions> = (ajv, opts?: DefinitionOptions) => {
+  getDefs(opts).forEach((d) => ajv.addKeyword(d))
+  return ajv
+}
+
+export default select
+module.exports = select

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/keywords/transform.ts

@@ -0,0 +1,7 @@
+import type {Plugin} from "ajv"
+import getDef from "../definitions/transform"
+
+const transform: Plugin<undefined> = (ajv) => ajv.addKeyword(getDef())
+
+export default transform
+module.exports = transform

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/keywords/typeof.ts

@@ -0,0 +1,7 @@
+import type {Plugin} from "ajv"
+import getDef from "../definitions/typeof"
+
+const typeofPlugin: Plugin<undefined> = (ajv) => ajv.addKeyword(getDef())
+
+export default typeofPlugin
+module.exports = typeofPlugin

frontend/node_modules/schema-utils/node_modules/ajv-keywords/src/keywords/uniqueItemProperties.ts

@@ -0,0 +1,7 @@
+import type {Plugin} from "ajv"
+import getDef from "../definitions/uniqueItemProperties"
+
+const uniqueItemProperties: Plugin<undefined> = (ajv) => ajv.addKeyword(getDef())
+
+export default uniqueItemProperties
+module.exports = uniqueItemProperties

frontend/node_modules/schema-utils/node_modules/ajv/.runkit_example.js

@@ -0,0 +1,23 @@
+const Ajv = require("ajv")
+const ajv = new Ajv({allErrors: true})
+
+const schema = {
+  type: "object",
+  properties: {
+    foo: {type: "string"},
+    bar: {type: "number", maximum: 3},
+  },
+  required: ["foo", "bar"],
+  additionalProperties: false,
+}
+
+const validate = ajv.compile(schema)
+
+test({foo: "abc", bar: 2})
+test({foo: 2, bar: 4})
+
+function test(data) {
+  const valid = validate(data)
+  if (valid) console.log("Valid!")
+  else console.log("Invalid: " + ajv.errorsText(validate.errors))
+}

frontend/node_modules/schema-utils/node_modules/ajv/LICENSE

@@ -0,0 +1,22 @@
+The MIT License (MIT)
+
+Copyright (c) 2015-2021 Evgeny Poberezkin
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+

frontend/node_modules/schema-utils/node_modules/ajv/README.md

@@ -0,0 +1,207 @@
+<img align="right" alt="Ajv logo" width="160" src="https://ajv.js.org/img/ajv.svg">
+
+&nbsp;
+
+# Ajv JSON schema validator
+
+The fastest JSON validator for Node.js and browser.
+
+Supports JSON Schema draft-04/06/07/2019-09/2020-12 ([draft-04 support](https://ajv.js.org/json-schema.html#draft-04) requires ajv-draft-04 package) and JSON Type Definition [RFC8927](https://datatracker.ietf.org/doc/rfc8927/).
+
+[![build](https://github.com/ajv-validator/ajv/actions/workflows/build.yml/badge.svg)](https://github.com/ajv-validator/ajv/actions?query=workflow%3Abuild)
+[![npm](https://img.shields.io/npm/v/ajv.svg)](https://www.npmjs.com/package/ajv)
+[![npm downloads](https://img.shields.io/npm/dm/ajv.svg)](https://www.npmjs.com/package/ajv)
+[![Coverage Status](https://coveralls.io/repos/github/ajv-validator/ajv/badge.svg?branch=master)](https://coveralls.io/github/ajv-validator/ajv?branch=master)
+[![SimpleX](https://img.shields.io/badge/chat-on%20SimpleX-70F0F9)](https://simplex.chat/contact#/?v=1-2&smp=smp%3A%2F%2Fu2dS9sG8nMNURyZwqASV4yROM28Er0luVTx5X1CsMrU%3D%40smp4.simplex.im%2F8KvvURM6J38Gdq9dCuPswMOkMny0xCOJ%23%2F%3Fv%3D1-2%26dh%3DMCowBQYDK2VuAyEAr8rPVRuMOXv6kwF2yUAap-eoVg-9ssOFCi1fIrxTUw0%253D%26srv%3Do5vmywmrnaxalvz6wi3zicyftgio6psuvyniis6gco6bp6ekl4cqj4id.onion&data=%7B%22type%22%3A%22group%22%2C%22groupLinkId%22%3A%224pwLRgWHU9tlroMWHz0uOg%3D%3D%22%7D)
+[![Gitter](https://img.shields.io/gitter/room/ajv-validator/ajv.svg)](https://gitter.im/ajv-validator/ajv)
+[![GitHub Sponsors](https://img.shields.io/badge/$-sponsors-brightgreen)](https://github.com/sponsors/epoberezkin)
+
+## Ajv sponsors
+
+[<img src="https://ajv.js.org/img/mozilla.svg" width="45%" alt="Mozilla">](https://www.mozilla.org)<img src="https://ajv.js.org/img/gap.svg" width="9%">[<img src="https://ajv.js.org/img/reserved.svg" width="45%">](https://opencollective.com/ajv)
+
+[<img src="https://ajv.js.org/img/microsoft.png" width="31%" alt="Microsoft">](https://opensource.microsoft.com)<img src="https://ajv.js.org/img/gap.svg" width="3%">[<img src="https://ajv.js.org/img/reserved.svg" width="31%">](https://opencollective.com/ajv)<img src="https://ajv.js.org/img/gap.svg" width="3%">[<img src="https://ajv.js.org/img/reserved.svg" width="31%">](https://opencollective.com/ajv)
+
+[<img src="https://ajv.js.org/img/retool.svg" width="22.5%" alt="Retool">](https://retool.com/?utm_source=sponsor&utm_campaign=ajv)<img src="https://ajv.js.org/img/gap.svg" width="3%">[<img src="https://ajv.js.org/img/tidelift.svg" width="22.5%" alt="Tidelift">](https://tidelift.com/subscription/pkg/npm-ajv?utm_source=npm-ajv&utm_medium=referral&utm_campaign=enterprise)<img src="https://ajv.js.org/img/gap.svg" width="3%">[<img src="https://ajv.js.org/img/simplex.svg" width="22.5%" alt="SimpleX">](https://github.com/simplex-chat/simplex-chat)<img src="https://ajv.js.org/img/gap.svg" width="3%">[<img src="https://ajv.js.org/img/reserved.svg" width="22.5%">](https://opencollective.com/ajv)
+
+## Contributing
+
+More than 100 people contributed to Ajv, and we would love to have you join the development. We welcome implementing new features that will benefit many users and ideas to improve our documentation.
+
+Please review [Contributing guidelines](./CONTRIBUTING.md) and [Code components](https://ajv.js.org/components.html).
+
+## Documentation
+
+All documentation is available on the [Ajv website](https://ajv.js.org).
+
+Some useful site links:
+
+- [Getting started](https://ajv.js.org/guide/getting-started.html)
+- [JSON Schema vs JSON Type Definition](https://ajv.js.org/guide/schema-language.html)
+- [API reference](https://ajv.js.org/api.html)
+- [Strict mode](https://ajv.js.org/strict-mode.html)
+- [Standalone validation code](https://ajv.js.org/standalone.html)
+- [Security considerations](https://ajv.js.org/security.html)
+- [Command line interface](https://ajv.js.org/packages/ajv-cli.html)
+- [Frequently Asked Questions](https://ajv.js.org/faq.html)
+
+## <a name="sponsors"></a>Please [sponsor Ajv development](https://github.com/sponsors/epoberezkin)
+
+Since I asked to support Ajv development 40 people and 6 organizations contributed via GitHub and OpenCollective - this support helped receiving the MOSS grant!
+
+Your continuing support is very important - the funds will be used to develop and maintain Ajv once the next major version is released.
+
+Please sponsor Ajv via:
+
+- [GitHub sponsors page](https://github.com/sponsors/epoberezkin) (GitHub will match it)
+- [Ajv Open Collective](https://opencollective.com/ajv)
+
+Thank you.
+
+#### Open Collective sponsors
+
+<a href="https://opencollective.com/ajv"><img src="https://opencollective.com/ajv/individuals.svg?width=890"></a>
+
+<a href="https://opencollective.com/ajv/organization/0/website"><img src="https://opencollective.com/ajv/organization/0/avatar.svg"></a>
+<a href="https://opencollective.com/ajv/organization/1/website"><img src="https://opencollective.com/ajv/organization/1/avatar.svg"></a>
+<a href="https://opencollective.com/ajv/organization/2/website"><img src="https://opencollective.com/ajv/organization/2/avatar.svg"></a>
+<a href="https://opencollective.com/ajv/organization/3/website"><img src="https://opencollective.com/ajv/organization/3/avatar.svg"></a>
+<a href="https://opencollective.com/ajv/organization/4/website"><img src="https://opencollective.com/ajv/organization/4/avatar.svg"></a>
+<a href="https://opencollective.com/ajv/organization/5/website"><img src="https://opencollective.com/ajv/organization/5/avatar.svg"></a>
+<a href="https://opencollective.com/ajv/organization/6/website"><img src="https://opencollective.com/ajv/organization/6/avatar.svg"></a>
+<a href="https://opencollective.com/ajv/organization/7/website"><img src="https://opencollective.com/ajv/organization/7/avatar.svg"></a>
+<a href="https://opencollective.com/ajv/organization/8/website"><img src="https://opencollective.com/ajv/organization/8/avatar.svg"></a>
+<a href="https://opencollective.com/ajv/organization/9/website"><img src="https://opencollective.com/ajv/organization/9/avatar.svg"></a>
+<a href="https://opencollective.com/ajv/organization/10/website"><img src="https://opencollective.com/ajv/organization/10/avatar.svg"></a>
+<a href="https://opencollective.com/ajv/organization/11/website"><img src="https://opencollective.com/ajv/organization/11/avatar.svg"></a>
+<a href="https://opencollective.com/ajv/organization/12/website"><img src="https://opencollective.com/ajv/organization/12/avatar.svg"></a>
+<a href="https://opencollective.com/ajv/organization/13/website"><img src="https://opencollective.com/ajv/organization/13/avatar.svg"></a>
+<a href="https://opencollective.com/ajv/organization/14/website"><img src="https://opencollective.com/ajv/organization/14/avatar.svg"></a>
+<a href="https://opencollective.com/ajv/organization/15/website"><img src="https://opencollective.com/ajv/organization/15/avatar.svg"></a>
+<a href="https://opencollective.com/ajv/organization/16/website"><img src="https://opencollective.com/ajv/organization/16/avatar.svg"></a>
+<a href="https://opencollective.com/ajv/organization/17/website"><img src="https://opencollective.com/ajv/organization/17/avatar.svg"></a>
+<a href="https://opencollective.com/ajv/organization/18/website"><img src="https://opencollective.com/ajv/organization/18/avatar.svg"></a>
+<a href="https://opencollective.com/ajv/organization/19/website"><img src="https://opencollective.com/ajv/organization/19/avatar.svg"></a>
+<a href="https://opencollective.com/ajv/organization/20/website"><img src="https://opencollective.com/ajv/organization/20/avatar.svg"></a>
+<a href="https://opencollective.com/ajv/organization/21/website"><img src="https://opencollective.com/ajv/organization/21/avatar.svg"></a>
+<a href="https://opencollective.com/ajv/organization/22/website"><img src="https://opencollective.com/ajv/organization/22/avatar.svg"></a>
+<a href="https://opencollective.com/ajv/organization/23/website"><img src="https://opencollective.com/ajv/organization/23/avatar.svg"></a>
+<a href="https://opencollective.com/ajv/organization/24/website"><img src="https://opencollective.com/ajv/organization/24/avatar.svg"></a>
+
+## Performance
+
+Ajv generates code to turn JSON Schemas into super-fast validation functions that are efficient for v8 optimization.
+
+Currently Ajv is the fastest and the most standard compliant validator according to these benchmarks:
+
+- [json-schema-benchmark](https://github.com/ebdrup/json-schema-benchmark) - 50% faster than the second place
+- [jsck benchmark](https://github.com/pandastrike/jsck#benchmarks) - 20-190% faster
+- [z-schema benchmark](https://rawgit.com/zaggino/z-schema/master/benchmark/results.html)
+- [themis benchmark](https://cdn.rawgit.com/playlyfe/themis/master/benchmark/results.html)
+
+Performance of different validators by [json-schema-benchmark](https://github.com/ebdrup/json-schema-benchmark):
+
+[![performance](https://chart.googleapis.com/chart?chxt=x,y&cht=bhs&chco=76A4FB&chls=2.0&chbh=62,4,1&chs=600x416&chxl=-1:|ajv|@exodus/schemasafe|is-my-json-valid|djv|@cfworker/json-schema|jsonschema/=t:100,69.2,51.5,13.1,5.1,1.2)](https://github.com/ebdrup/json-schema-benchmark/blob/master/README.md#performance)
+
+## Features
+
+- Ajv implements JSON Schema [draft-06/07/2019-09/2020-12](http://json-schema.org/) standards (draft-04 is supported in v6):
+  - all validation keywords (see [JSON Schema validation keywords](https://ajv.js.org/json-schema.html))
+  - [OpenAPI](https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.0.3.md) extensions:
+    - NEW: keyword [discriminator](https://ajv.js.org/json-schema.html#discriminator).
+    - keyword [nullable](https://ajv.js.org/json-schema.html#nullable).
+  - full support of remote references (remote schemas have to be added with `addSchema` or compiled to be available)
+  - support of recursive references between schemas
+  - correct string lengths for strings with unicode pairs
+  - JSON Schema [formats](https://ajv.js.org/guide/formats.html) (with [ajv-formats](https://github.com/ajv-validator/ajv-formats) plugin).
+  - [validates schemas against meta-schema](https://ajv.js.org/api.html#api-validateschema)
+- NEW: supports [JSON Type Definition](https://datatracker.ietf.org/doc/rfc8927/):
+  - all keywords (see [JSON Type Definition schema forms](https://ajv.js.org/json-type-definition.html))
+  - meta-schema for JTD schemas
+  - "union" keyword and user-defined keywords (can be used inside "metadata" member of the schema)
+- supports [browsers](https://ajv.js.org/guide/environments.html#browsers) and Node.js 10.x - current
+- [asynchronous loading](https://ajv.js.org/guide/managing-schemas.html#asynchronous-schema-loading) of referenced schemas during compilation
+- "All errors" validation mode with [option allErrors](https://ajv.js.org/options.html#allerrors)
+- [error messages with parameters](https://ajv.js.org/api.html#validation-errors) describing error reasons to allow error message generation
+- i18n error messages support with [ajv-i18n](https://github.com/ajv-validator/ajv-i18n) package
+- [removing-additional-properties](https://ajv.js.org/guide/modifying-data.html#removing-additional-properties)
+- [assigning defaults](https://ajv.js.org/guide/modifying-data.html#assigning-defaults) to missing properties and items
+- [coercing data](https://ajv.js.org/guide/modifying-data.html#coercing-data-types) to the types specified in `type` keywords
+- [user-defined keywords](https://ajv.js.org/guide/user-keywords.html)
+- additional extension keywords with [ajv-keywords](https://github.com/ajv-validator/ajv-keywords) package
+- [\$data reference](https://ajv.js.org/guide/combining-schemas.html#data-reference) to use values from the validated data as values for the schema keywords
+- [asynchronous validation](https://ajv.js.org/guide/async-validation.html) of user-defined formats and keywords
+
+## Install
+
+To install version 8:
+
+```
+npm install ajv
+```
+
+## <a name="usage"></a>Getting started
+
+Try it in the Node.js REPL: https://runkit.com/npm/ajv
+
+In JavaScript:
+
+```javascript
+// or ESM/TypeScript import
+import Ajv from "ajv"
+// Node.js require:
+const Ajv = require("ajv")
+
+const ajv = new Ajv() // options can be passed, e.g. {allErrors: true}
+
+const schema = {
+  type: "object",
+  properties: {
+    foo: {type: "integer"},
+    bar: {type: "string"},
+  },
+  required: ["foo"],
+  additionalProperties: false,
+}
+
+const data = {
+  foo: 1,
+  bar: "abc",
+}
+
+const validate = ajv.compile(schema)
+const valid = validate(data)
+if (!valid) console.log(validate.errors)
+```
+
+Learn how to use Ajv and see more examples in the [Guide: getting started](https://ajv.js.org/guide/getting-started.html)
+
+## Changes history
+
+See [https://github.com/ajv-validator/ajv/releases](https://github.com/ajv-validator/ajv/releases)
+
+**Please note**: [Changes in version 8.0.0](https://github.com/ajv-validator/ajv/releases/tag/v8.0.0)
+
+[Version 7.0.0](https://github.com/ajv-validator/ajv/releases/tag/v7.0.0)
+
+[Version 6.0.0](https://github.com/ajv-validator/ajv/releases/tag/v6.0.0).
+
+## Code of conduct
+
+Please review and follow the [Code of conduct](./CODE_OF_CONDUCT.md).
+
+Please report any unacceptable behaviour to ajv.validator@gmail.com - it will be reviewed by the project team.
+
+## Security contact
+
+To report a security vulnerability, please use the
+[Tidelift security contact](https://tidelift.com/security).
+Tidelift will coordinate the fix and disclosure. Please do NOT report security vulnerabilities via GitHub issues.
+
+## Open-source software support
+
+Ajv is a part of [Tidelift subscription](https://tidelift.com/subscription/pkg/npm-ajv?utm_source=npm-ajv&utm_medium=referral&utm_campaign=readme) - it provides a centralised support to open-source software users, in addition to the support provided by software maintainers.
+
+## License
+
+[MIT](./LICENSE)

frontend/node_modules/schema-utils/node_modules/ajv/lib/2019.ts

@@ -0,0 +1,81 @@
+import type {AnySchemaObject} from "./types"
+import AjvCore, {Options} from "./core"
+
+import draft7Vocabularies from "./vocabularies/draft7"
+import dynamicVocabulary from "./vocabularies/dynamic"
+import nextVocabulary from "./vocabularies/next"
+import unevaluatedVocabulary from "./vocabularies/unevaluated"
+import discriminator from "./vocabularies/discriminator"
+import addMetaSchema2019 from "./refs/json-schema-2019-09"
+
+const META_SCHEMA_ID = "https://json-schema.org/draft/2019-09/schema"
+
+export class Ajv2019 extends AjvCore {
+  constructor(opts: Options = {}) {
+    super({
+      ...opts,
+      dynamicRef: true,
+      next: true,
+      unevaluated: true,
+    })
+  }
+
+  _addVocabularies(): void {
+    super._addVocabularies()
+    this.addVocabulary(dynamicVocabulary)
+    draft7Vocabularies.forEach((v) => this.addVocabulary(v))
+    this.addVocabulary(nextVocabulary)
+    this.addVocabulary(unevaluatedVocabulary)
+    if (this.opts.discriminator) this.addKeyword(discriminator)
+  }
+
+  _addDefaultMetaSchema(): void {
+    super._addDefaultMetaSchema()
+    const {$data, meta} = this.opts
+    if (!meta) return
+    addMetaSchema2019.call(this, $data)
+    this.refs["http://json-schema.org/schema"] = META_SCHEMA_ID
+  }
+
+  defaultMeta(): string | AnySchemaObject | undefined {
+    return (this.opts.defaultMeta =
+      super.defaultMeta() || (this.getSchema(META_SCHEMA_ID) ? META_SCHEMA_ID : undefined))
+  }
+}
+
+module.exports = exports = Ajv2019
+module.exports.Ajv2019 = Ajv2019
+Object.defineProperty(exports, "__esModule", {value: true})
+
+export default Ajv2019
+
+export {
+  Format,
+  FormatDefinition,
+  AsyncFormatDefinition,
+  KeywordDefinition,
+  KeywordErrorDefinition,
+  CodeKeywordDefinition,
+  MacroKeywordDefinition,
+  FuncKeywordDefinition,
+  Vocabulary,
+  Schema,
+  SchemaObject,
+  AnySchemaObject,
+  AsyncSchema,
+  AnySchema,
+  ValidateFunction,
+  AsyncValidateFunction,
+  ErrorObject,
+  ErrorNoParams,
+} from "./types"
+
+export {Plugin, Options, CodeOptions, InstanceOptions, Logger, ErrorsTextOptions} from "./core"
+export {SchemaCxt, SchemaObjCxt} from "./compile"
+export {KeywordCxt} from "./compile/validate"
+export {DefinedError} from "./vocabularies/errors"
+export {JSONType} from "./compile/rules"
+export {JSONSchemaType} from "./types/json-schema"
+export {_, str, stringify, nil, Name, Code, CodeGen, CodeGenOptions} from "./compile/codegen"
+export {default as ValidationError} from "./runtime/validation_error"
+export {default as MissingRefError} from "./compile/ref_error"

frontend/node_modules/schema-utils/node_modules/ajv/lib/2020.ts

@@ -0,0 +1,75 @@
+import type {AnySchemaObject} from "./types"
+import AjvCore, {Options} from "./core"
+
+import draft2020Vocabularies from "./vocabularies/draft2020"
+import discriminator from "./vocabularies/discriminator"
+import addMetaSchema2020 from "./refs/json-schema-2020-12"
+
+const META_SCHEMA_ID = "https://json-schema.org/draft/2020-12/schema"
+
+export class Ajv2020 extends AjvCore {
+  constructor(opts: Options = {}) {
+    super({
+      ...opts,
+      dynamicRef: true,
+      next: true,
+      unevaluated: true,
+    })
+  }
+
+  _addVocabularies(): void {
+    super._addVocabularies()
+    draft2020Vocabularies.forEach((v) => this.addVocabulary(v))
+    if (this.opts.discriminator) this.addKeyword(discriminator)
+  }
+
+  _addDefaultMetaSchema(): void {
+    super._addDefaultMetaSchema()
+    const {$data, meta} = this.opts
+    if (!meta) return
+    addMetaSchema2020.call(this, $data)
+    this.refs["http://json-schema.org/schema"] = META_SCHEMA_ID
+  }
+
+  defaultMeta(): string | AnySchemaObject | undefined {
+    return (this.opts.defaultMeta =
+      super.defaultMeta() || (this.getSchema(META_SCHEMA_ID) ? META_SCHEMA_ID : undefined))
+  }
+}
+
+module.exports = exports = Ajv2020
+module.exports.Ajv2020 = Ajv2020
+Object.defineProperty(exports, "__esModule", {value: true})
+
+export default Ajv2020
+
+export {
+  Format,
+  FormatDefinition,
+  AsyncFormatDefinition,
+  KeywordDefinition,
+  KeywordErrorDefinition,
+  CodeKeywordDefinition,
+  MacroKeywordDefinition,
+  FuncKeywordDefinition,
+  Vocabulary,
+  Schema,
+  SchemaObject,
+  AnySchemaObject,
+  AsyncSchema,
+  AnySchema,
+  ValidateFunction,
+  AsyncValidateFunction,
+  ErrorObject,
+  ErrorNoParams,
+} from "./types"
+
+export {Plugin, Options, CodeOptions, InstanceOptions, Logger, ErrorsTextOptions} from "./core"
+export {SchemaCxt, SchemaObjCxt} from "./compile"
+export {KeywordCxt} from "./compile/validate"
+export {DefinedError} from "./vocabularies/errors"
+export {JSONType} from "./compile/rules"
+export {JSONSchemaType} from "./types/json-schema"
+export {_, str, stringify, nil, Name, Code, CodeGen, CodeGenOptions} from "./compile/codegen"
+export {default as ValidationError} from "./runtime/validation_error"
+export {default as MissingRefError} from "./compile/ref_error"

frontend/node_modules/schema-utils/node_modules/ajv/lib/ajv.ts

@@ -0,0 +1,70 @@
+import type {AnySchemaObject} from "./types"
+import AjvCore from "./core"
+import draft7Vocabularies from "./vocabularies/draft7"
+import discriminator from "./vocabularies/discriminator"
+import * as draft7MetaSchema from "./refs/json-schema-draft-07.json"
+
+const META_SUPPORT_DATA = ["/properties"]
+
+const META_SCHEMA_ID = "http://json-schema.org/draft-07/schema"
+
+export class Ajv extends AjvCore {
+  _addVocabularies(): void {
+    super._addVocabularies()
+    draft7Vocabularies.forEach((v) => this.addVocabulary(v))
+    if (this.opts.discriminator) this.addKeyword(discriminator)
+  }
+
+  _addDefaultMetaSchema(): void {
+    super._addDefaultMetaSchema()
+    if (!this.opts.meta) return
+    const metaSchema = this.opts.$data
+      ? this.$dataMetaSchema(draft7MetaSchema, META_SUPPORT_DATA)
+      : draft7MetaSchema
+    this.addMetaSchema(metaSchema, META_SCHEMA_ID, false)
+    this.refs["http://json-schema.org/schema"] = META_SCHEMA_ID
+  }
+
+  defaultMeta(): string | AnySchemaObject | undefined {
+    return (this.opts.defaultMeta =
+      super.defaultMeta() || (this.getSchema(META_SCHEMA_ID) ? META_SCHEMA_ID : undefined))
+  }
+}
+
+module.exports = exports = Ajv
+module.exports.Ajv = Ajv
+Object.defineProperty(exports, "__esModule", {value: true})
+
+export default Ajv
+
+export {
+  Format,
+  FormatDefinition,
+  AsyncFormatDefinition,
+  KeywordDefinition,
+  KeywordErrorDefinition,
+  CodeKeywordDefinition,
+  MacroKeywordDefinition,
+  FuncKeywordDefinition,
+  Vocabulary,
+  Schema,
+  SchemaObject,
+  AnySchemaObject,
+  AsyncSchema,
+  AnySchema,
+  ValidateFunction,
+  AsyncValidateFunction,
+  SchemaValidateFunction,
+  ErrorObject,
+  ErrorNoParams,
+} from "./types"
+
+export {Plugin, Options, CodeOptions, InstanceOptions, Logger, ErrorsTextOptions} from "./core"
+export {SchemaCxt, SchemaObjCxt} from "./compile"
+export {KeywordCxt} from "./compile/validate"
+export {DefinedError} from "./vocabularies/errors"
+export {JSONType} from "./compile/rules"
+export {JSONSchemaType} from "./types/json-schema"
+export {_, str, stringify, nil, Name, Code, CodeGen, CodeGenOptions} from "./compile/codegen"
+export {default as ValidationError} from "./runtime/validation_error"
+export {default as MissingRefError} from "./compile/ref_error"

frontend/node_modules/schema-utils/node_modules/ajv/lib/compile/codegen/code.ts

@@ -0,0 +1,169 @@
+// eslint-disable-next-line @typescript-eslint/no-extraneous-class
+export abstract class _CodeOrName {
+  abstract readonly str: string
+  abstract readonly names: UsedNames
+  abstract toString(): string
+  abstract emptyStr(): boolean
+}
+
+export const IDENTIFIER = /^[a-z$_][a-z$_0-9]*$/i
+
+export class Name extends _CodeOrName {
+  readonly str: string
+  constructor(s: string) {
+    super()
+    if (!IDENTIFIER.test(s)) throw new Error("CodeGen: name must be a valid identifier")
+    this.str = s
+  }
+
+  toString(): string {
+    return this.str
+  }
+
+  emptyStr(): boolean {
+    return false
+  }
+
+  get names(): UsedNames {
+    return {[this.str]: 1}
+  }
+}
+
+export class _Code extends _CodeOrName {
+  readonly _items: readonly CodeItem[]
+  private _str?: string
+  private _names?: UsedNames
+
+  constructor(code: string | readonly CodeItem[]) {
+    super()
+    this._items = typeof code === "string" ? [code] : code
+  }
+
+  toString(): string {
+    return this.str
+  }
+
+  emptyStr(): boolean {
+    if (this._items.length > 1) return false
+    const item = this._items[0]
+    return item === "" || item === '""'
+  }
+
+  get str(): string {
+    return (this._str ??= this._items.reduce((s: string, c: CodeItem) => `${s}${c}`, ""))
+  }
+
+  get names(): UsedNames {
+    return (this._names ??= this._items.reduce((names: UsedNames, c) => {
+      if (c instanceof Name) names[c.str] = (names[c.str] || 0) + 1
+      return names
+    }, {}))
+  }
+}
+
+export type CodeItem = Name | string | number | boolean | null
+
+export type UsedNames = Record<string, number | undefined>
+
+export type Code = _Code | Name
+
+export type SafeExpr = Code | number | boolean | null
+
+export const nil = new _Code("")
+
+type CodeArg = SafeExpr | string | undefined
+
+export function _(strs: TemplateStringsArray, ...args: CodeArg[]): _Code {
+  const code: CodeItem[] = [strs[0]]
+  let i = 0
+  while (i < args.length) {
+    addCodeArg(code, args[i])
+    code.push(strs[++i])
+  }
+  return new _Code(code)
+}
+
+const plus = new _Code("+")
+
+export function str(strs: TemplateStringsArray, ...args: (CodeArg | string[])[]): _Code {
+  const expr: CodeItem[] = [safeStringify(strs[0])]
+  let i = 0
+  while (i < args.length) {
+    expr.push(plus)
+    addCodeArg(expr, args[i])
+    expr.push(plus, safeStringify(strs[++i]))
+  }
+  optimize(expr)
+  return new _Code(expr)
+}
+
+export function addCodeArg(code: CodeItem[], arg: CodeArg | string[]): void {
+  if (arg instanceof _Code) code.push(...arg._items)
+  else if (arg instanceof Name) code.push(arg)
+  else code.push(interpolate(arg))
+}
+
+function optimize(expr: CodeItem[]): void {
+  let i = 1
+  while (i < expr.length - 1) {
+    if (expr[i] === plus) {
+      const res = mergeExprItems(expr[i - 1], expr[i + 1])
+      if (res !== undefined) {
+        expr.splice(i - 1, 3, res)
+        continue
+      }
+      expr[i++] = "+"
+    }
+    i++
+  }
+}
+
+function mergeExprItems(a: CodeItem, b: CodeItem): CodeItem | undefined {
+  if (b === '""') return a
+  if (a === '""') return b
+  if (typeof a == "string") {
+    if (b instanceof Name || a[a.length - 1] !== '"') return
+    if (typeof b != "string") return `${a.slice(0, -1)}${b}"`
+    if (b[0] === '"') return a.slice(0, -1) + b.slice(1)
+    return
+  }
+  if (typeof b == "string" && b[0] === '"' && !(a instanceof Name)) return `"${a}${b.slice(1)}`
+  return
+}
+
+export function strConcat(c1: Code, c2: Code): Code {
+  return c2.emptyStr() ? c1 : c1.emptyStr() ? c2 : str`${c1}${c2}`
+}
+
+// TODO do not allow arrays here
+function interpolate(x?: string | string[] | number | boolean | null): SafeExpr | string {
+  return typeof x == "number" || typeof x == "boolean" || x === null
+    ? x
+    : safeStringify(Array.isArray(x) ? x.join(",") : x)
+}
+
+export function stringify(x: unknown): Code {
+  return new _Code(safeStringify(x))
+}
+
+export function safeStringify(x: unknown): string {
+  return JSON.stringify(x)
+    .replace(/\u2028/g, "\\u2028")
+    .replace(/\u2029/g, "\\u2029")
+}
+
+export function getProperty(key: Code | string | number): Code {
+  return typeof key == "string" && IDENTIFIER.test(key) ? new _Code(`.${key}`) : _`[${key}]`
+}
+
+//Does best effort to format the name properly
+export function getEsmExportName(key: Code | string | number): Code {
+  if (typeof key == "string" && IDENTIFIER.test(key)) {
+    return new _Code(`${key}`)
+  }
+  throw new Error(`CodeGen: invalid export name: ${key}, use explicit $id name mapping`)
+}
+
+export function regexpCode(rx: RegExp): Code {
+  return new _Code(rx.toString())
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/compile/codegen/index.ts

@@ -0,0 +1,852 @@
+import type {ScopeValueSets, NameValue, ValueScope, ValueScopeName} from "./scope"
+import {_, nil, _Code, Code, Name, UsedNames, CodeItem, addCodeArg, _CodeOrName} from "./code"
+import {Scope, varKinds} from "./scope"
+
+export {_, str, strConcat, nil, getProperty, stringify, regexpCode, Name, Code} from "./code"
+export {Scope, ScopeStore, ValueScope, ValueScopeName, ScopeValueSets, varKinds} from "./scope"
+
+// type for expressions that can be safely inserted in code without quotes
+export type SafeExpr = Code | number | boolean | null
+
+// type that is either Code of function that adds code to CodeGen instance using its methods
+export type Block = Code | (() => void)
+
+export const operators = {
+  GT: new _Code(">"),
+  GTE: new _Code(">="),
+  LT: new _Code("<"),
+  LTE: new _Code("<="),
+  EQ: new _Code("==="),
+  NEQ: new _Code("!=="),
+  NOT: new _Code("!"),
+  OR: new _Code("||"),
+  AND: new _Code("&&"),
+  ADD: new _Code("+"),
+}
+
+abstract class Node {
+  abstract readonly names: UsedNames
+
+  optimizeNodes(): this | ChildNode | ChildNode[] | undefined {
+    return this
+  }
+
+  optimizeNames(_names: UsedNames, _constants: Constants): this | undefined {
+    return this
+  }
+
+  // get count(): number {
+  //   return 1
+  // }
+}
+
+class Def extends Node {
+  constructor(
+    private readonly varKind: Name,
+    private readonly name: Name,
+    private rhs?: SafeExpr
+  ) {
+    super()
+  }
+
+  render({es5, _n}: CGOptions): string {
+    const varKind = es5 ? varKinds.var : this.varKind
+    const rhs = this.rhs === undefined ? "" : ` = ${this.rhs}`
+    return `${varKind} ${this.name}${rhs};` + _n
+  }
+
+  optimizeNames(names: UsedNames, constants: Constants): this | undefined {
+    if (!names[this.name.str]) return
+    if (this.rhs) this.rhs = optimizeExpr(this.rhs, names, constants)
+    return this
+  }
+
+  get names(): UsedNames {
+    return this.rhs instanceof _CodeOrName ? this.rhs.names : {}
+  }
+}
+
+class Assign extends Node {
+  constructor(
+    readonly lhs: Code,
+    public rhs: SafeExpr,
+    private readonly sideEffects?: boolean
+  ) {
+    super()
+  }
+
+  render({_n}: CGOptions): string {
+    return `${this.lhs} = ${this.rhs};` + _n
+  }
+
+  optimizeNames(names: UsedNames, constants: Constants): this | undefined {
+    if (this.lhs instanceof Name && !names[this.lhs.str] && !this.sideEffects) return
+    this.rhs = optimizeExpr(this.rhs, names, constants)
+    return this
+  }
+
+  get names(): UsedNames {
+    const names = this.lhs instanceof Name ? {} : {...this.lhs.names}
+    return addExprNames(names, this.rhs)
+  }
+}
+
+class AssignOp extends Assign {
+  constructor(
+    lhs: Code,
+    private readonly op: Code,
+    rhs: SafeExpr,
+    sideEffects?: boolean
+  ) {
+    super(lhs, rhs, sideEffects)
+  }
+
+  render({_n}: CGOptions): string {
+    return `${this.lhs} ${this.op}= ${this.rhs};` + _n
+  }
+}
+
+class Label extends Node {
+  readonly names: UsedNames = {}
+  constructor(readonly label: Name) {
+    super()
+  }
+
+  render({_n}: CGOptions): string {
+    return `${this.label}:` + _n
+  }
+}
+
+class Break extends Node {
+  readonly names: UsedNames = {}
+  constructor(readonly label?: Code) {
+    super()
+  }
+
+  render({_n}: CGOptions): string {
+    const label = this.label ? ` ${this.label}` : ""
+    return `break${label};` + _n
+  }
+}
+
+class Throw extends Node {
+  constructor(readonly error: Code) {
+    super()
+  }
+
+  render({_n}: CGOptions): string {
+    return `throw ${this.error};` + _n
+  }
+
+  get names(): UsedNames {
+    return this.error.names
+  }
+}
+
+class AnyCode extends Node {
+  constructor(private code: SafeExpr) {
+    super()
+  }
+
+  render({_n}: CGOptions): string {
+    return `${this.code};` + _n
+  }
+
+  optimizeNodes(): this | undefined {
+    return `${this.code}` ? this : undefined
+  }
+
+  optimizeNames(names: UsedNames, constants: Constants): this {
+    this.code = optimizeExpr(this.code, names, constants)
+    return this
+  }
+
+  get names(): UsedNames {
+    return this.code instanceof _CodeOrName ? this.code.names : {}
+  }
+}
+
+abstract class ParentNode extends Node {
+  constructor(readonly nodes: ChildNode[] = []) {
+    super()
+  }
+
+  render(opts: CGOptions): string {
+    return this.nodes.reduce((code, n) => code + n.render(opts), "")
+  }
+
+  optimizeNodes(): this | ChildNode | ChildNode[] | undefined {
+    const {nodes} = this
+    let i = nodes.length
+    while (i--) {
+      const n = nodes[i].optimizeNodes()
+      if (Array.isArray(n)) nodes.splice(i, 1, ...n)
+      else if (n) nodes[i] = n
+      else nodes.splice(i, 1)
+    }
+    return nodes.length > 0 ? this : undefined
+  }
+
+  optimizeNames(names: UsedNames, constants: Constants): this | undefined {
+    const {nodes} = this
+    let i = nodes.length
+    while (i--) {
+      // iterating backwards improves 1-pass optimization
+      const n = nodes[i]
+      if (n.optimizeNames(names, constants)) continue
+      subtractNames(names, n.names)
+      nodes.splice(i, 1)
+    }
+    return nodes.length > 0 ? this : undefined
+  }
+
+  get names(): UsedNames {
+    return this.nodes.reduce((names: UsedNames, n) => addNames(names, n.names), {})
+  }
+
+  // get count(): number {
+  //   return this.nodes.reduce((c, n) => c + n.count, 1)
+  // }
+}
+
+abstract class BlockNode extends ParentNode {
+  render(opts: CGOptions): string {
+    return "{" + opts._n + super.render(opts) + "}" + opts._n
+  }
+}
+
+class Root extends ParentNode {}
+
+class Else extends BlockNode {
+  static readonly kind = "else"
+}
+
+class If extends BlockNode {
+  static readonly kind = "if"
+  else?: If | Else
+  constructor(
+    private condition: Code | boolean,
+    nodes?: ChildNode[]
+  ) {
+    super(nodes)
+  }
+
+  render(opts: CGOptions): string {
+    let code = `if(${this.condition})` + super.render(opts)
+    if (this.else) code += "else " + this.else.render(opts)
+    return code
+  }
+
+  optimizeNodes(): If | ChildNode[] | undefined {
+    super.optimizeNodes()
+    const cond = this.condition
+    if (cond === true) return this.nodes // else is ignored here
+    let e = this.else
+    if (e) {
+      const ns = e.optimizeNodes()
+      e = this.else = Array.isArray(ns) ? new Else(ns) : (ns as Else | undefined)
+    }
+    if (e) {
+      if (cond === false) return e instanceof If ? e : e.nodes
+      if (this.nodes.length) return this
+      return new If(not(cond), e instanceof If ? [e] : e.nodes)
+    }
+    if (cond === false || !this.nodes.length) return undefined
+    return this
+  }
+
+  optimizeNames(names: UsedNames, constants: Constants): this | undefined {
+    this.else = this.else?.optimizeNames(names, constants)
+    if (!(super.optimizeNames(names, constants) || this.else)) return
+    this.condition = optimizeExpr(this.condition, names, constants)
+    return this
+  }
+
+  get names(): UsedNames {
+    const names = super.names
+    addExprNames(names, this.condition)
+    if (this.else) addNames(names, this.else.names)
+    return names
+  }
+
+  // get count(): number {
+  //   return super.count + (this.else?.count || 0)
+  // }
+}
+
+abstract class For extends BlockNode {
+  static readonly kind = "for"
+}
+
+class ForLoop extends For {
+  constructor(private iteration: Code) {
+    super()
+  }
+
+  render(opts: CGOptions): string {
+    return `for(${this.iteration})` + super.render(opts)
+  }
+
+  optimizeNames(names: UsedNames, constants: Constants): this | undefined {
+    if (!super.optimizeNames(names, constants)) return
+    this.iteration = optimizeExpr(this.iteration, names, constants)
+    return this
+  }
+
+  get names(): UsedNames {
+    return addNames(super.names, this.iteration.names)
+  }
+}
+
+class ForRange extends For {
+  constructor(
+    private readonly varKind: Name,
+    private readonly name: Name,
+    private readonly from: SafeExpr,
+    private readonly to: SafeExpr
+  ) {
+    super()
+  }
+
+  render(opts: CGOptions): string {
+    const varKind = opts.es5 ? varKinds.var : this.varKind
+    const {name, from, to} = this
+    return `for(${varKind} ${name}=${from}; ${name}<${to}; ${name}++)` + super.render(opts)
+  }
+
+  get names(): UsedNames {
+    const names = addExprNames(super.names, this.from)
+    return addExprNames(names, this.to)
+  }
+}
+
+class ForIter extends For {
+  constructor(
+    private readonly loop: "of" | "in",
+    private readonly varKind: Name,
+    private readonly name: Name,
+    private iterable: Code
+  ) {
+    super()
+  }
+
+  render(opts: CGOptions): string {
+    return `for(${this.varKind} ${this.name} ${this.loop} ${this.iterable})` + super.render(opts)
+  }
+
+  optimizeNames(names: UsedNames, constants: Constants): this | undefined {
+    if (!super.optimizeNames(names, constants)) return
+    this.iterable = optimizeExpr(this.iterable, names, constants)
+    return this
+  }
+
+  get names(): UsedNames {
+    return addNames(super.names, this.iterable.names)
+  }
+}
+
+class Func extends BlockNode {
+  static readonly kind = "func"
+  constructor(
+    public name: Name,
+    public args: Code,
+    public async?: boolean
+  ) {
+    super()
+  }
+
+  render(opts: CGOptions): string {
+    const _async = this.async ? "async " : ""
+    return `${_async}function ${this.name}(${this.args})` + super.render(opts)
+  }
+}
+
+class Return extends ParentNode {
+  static readonly kind = "return"
+
+  render(opts: CGOptions): string {
+    return "return " + super.render(opts)
+  }
+}
+
+class Try extends BlockNode {
+  catch?: Catch
+  finally?: Finally
+
+  render(opts: CGOptions): string {
+    let code = "try" + super.render(opts)
+    if (this.catch) code += this.catch.render(opts)
+    if (this.finally) code += this.finally.render(opts)
+    return code
+  }
+
+  optimizeNodes(): this {
+    super.optimizeNodes()
+    this.catch?.optimizeNodes() as Catch | undefined
+    this.finally?.optimizeNodes() as Finally | undefined
+    return this
+  }
+
+  optimizeNames(names: UsedNames, constants: Constants): this {
+    super.optimizeNames(names, constants)
+    this.catch?.optimizeNames(names, constants)
+    this.finally?.optimizeNames(names, constants)
+    return this
+  }
+
+  get names(): UsedNames {
+    const names = super.names
+    if (this.catch) addNames(names, this.catch.names)
+    if (this.finally) addNames(names, this.finally.names)
+    return names
+  }
+
+  // get count(): number {
+  //   return super.count + (this.catch?.count || 0) + (this.finally?.count || 0)
+  // }
+}
+
+class Catch extends BlockNode {
+  static readonly kind = "catch"
+  constructor(readonly error: Name) {
+    super()
+  }
+
+  render(opts: CGOptions): string {
+    return `catch(${this.error})` + super.render(opts)
+  }
+}
+
+class Finally extends BlockNode {
+  static readonly kind = "finally"
+  render(opts: CGOptions): string {
+    return "finally" + super.render(opts)
+  }
+}
+
+type StartBlockNode = If | For | Func | Return | Try
+
+type LeafNode = Def | Assign | Label | Break | Throw | AnyCode
+
+type ChildNode = StartBlockNode | LeafNode
+
+type EndBlockNodeType =
+  | typeof If
+  | typeof Else
+  | typeof For
+  | typeof Func
+  | typeof Return
+  | typeof Catch
+  | typeof Finally
+
+type Constants = Record<string, SafeExpr | undefined>
+
+export interface CodeGenOptions {
+  es5?: boolean
+  lines?: boolean
+  ownProperties?: boolean
+}
+
+interface CGOptions extends CodeGenOptions {
+  _n: "\n" | ""
+}
+
+export class CodeGen {
+  readonly _scope: Scope
+  readonly _extScope: ValueScope
+  readonly _values: ScopeValueSets = {}
+  private readonly _nodes: ParentNode[]
+  private readonly _blockStarts: number[] = []
+  private readonly _constants: Constants = {}
+  private readonly opts: CGOptions
+
+  constructor(extScope: ValueScope, opts: CodeGenOptions = {}) {
+    this.opts = {...opts, _n: opts.lines ? "\n" : ""}
+    this._extScope = extScope
+    this._scope = new Scope({parent: extScope})
+    this._nodes = [new Root()]
+  }
+
+  toString(): string {
+    return this._root.render(this.opts)
+  }
+
+  // returns unique name in the internal scope
+  name(prefix: string): Name {
+    return this._scope.name(prefix)
+  }
+
+  // reserves unique name in the external scope
+  scopeName(prefix: string): ValueScopeName {
+    return this._extScope.name(prefix)
+  }
+
+  // reserves unique name in the external scope and assigns value to it
+  scopeValue(prefixOrName: ValueScopeName | string, value: NameValue): Name {
+    const name = this._extScope.value(prefixOrName, value)
+    const vs = this._values[name.prefix] || (this._values[name.prefix] = new Set())
+    vs.add(name)
+    return name
+  }
+
+  getScopeValue(prefix: string, keyOrRef: unknown): ValueScopeName | undefined {
+    return this._extScope.getValue(prefix, keyOrRef)
+  }
+
+  // return code that assigns values in the external scope to the names that are used internally
+  // (same names that were returned by gen.scopeName or gen.scopeValue)
+  scopeRefs(scopeName: Name): Code {
+    return this._extScope.scopeRefs(scopeName, this._values)
+  }
+
+  scopeCode(): Code {
+    return this._extScope.scopeCode(this._values)
+  }
+
+  private _def(
+    varKind: Name,
+    nameOrPrefix: Name | string,
+    rhs?: SafeExpr,
+    constant?: boolean
+  ): Name {
+    const name = this._scope.toName(nameOrPrefix)
+    if (rhs !== undefined && constant) this._constants[name.str] = rhs
+    this._leafNode(new Def(varKind, name, rhs))
+    return name
+  }
+
+  // `const` declaration (`var` in es5 mode)
+  const(nameOrPrefix: Name | string, rhs: SafeExpr, _constant?: boolean): Name {
+    return this._def(varKinds.const, nameOrPrefix, rhs, _constant)
+  }
+
+  // `let` declaration with optional assignment (`var` in es5 mode)
+  let(nameOrPrefix: Name | string, rhs?: SafeExpr, _constant?: boolean): Name {
+    return this._def(varKinds.let, nameOrPrefix, rhs, _constant)
+  }
+
+  // `var` declaration with optional assignment
+  var(nameOrPrefix: Name | string, rhs?: SafeExpr, _constant?: boolean): Name {
+    return this._def(varKinds.var, nameOrPrefix, rhs, _constant)
+  }
+
+  // assignment code
+  assign(lhs: Code, rhs: SafeExpr, sideEffects?: boolean): CodeGen {
+    return this._leafNode(new Assign(lhs, rhs, sideEffects))
+  }
+
+  // `+=` code
+  add(lhs: Code, rhs: SafeExpr): CodeGen {
+    return this._leafNode(new AssignOp(lhs, operators.ADD, rhs))
+  }
+
+  // appends passed SafeExpr to code or executes Block
+  code(c: Block | SafeExpr): CodeGen {
+    if (typeof c == "function") c()
+    else if (c !== nil) this._leafNode(new AnyCode(c))
+    return this
+  }
+
+  // returns code for object literal for the passed argument list of key-value pairs
+  object(...keyValues: [Name | string, SafeExpr | string][]): _Code {
+    const code: CodeItem[] = ["{"]
+    for (const [key, value] of keyValues) {
+      if (code.length > 1) code.push(",")
+      code.push(key)
+      if (key !== value || this.opts.es5) {
+        code.push(":")
+        addCodeArg(code, value)
+      }
+    }
+    code.push("}")
+    return new _Code(code)
+  }
+
+  // `if` clause (or statement if `thenBody` and, optionally, `elseBody` are passed)
+  if(condition: Code | boolean, thenBody?: Block, elseBody?: Block): CodeGen {
+    this._blockNode(new If(condition))
+
+    if (thenBody && elseBody) {
+      this.code(thenBody).else().code(elseBody).endIf()
+    } else if (thenBody) {
+      this.code(thenBody).endIf()
+    } else if (elseBody) {
+      throw new Error('CodeGen: "else" body without "then" body')
+    }
+    return this
+  }
+
+  // `else if` clause - invalid without `if` or after `else` clauses
+  elseIf(condition: Code | boolean): CodeGen {
+    return this._elseNode(new If(condition))
+  }
+
+  // `else` clause - only valid after `if` or `else if` clauses
+  else(): CodeGen {
+    return this._elseNode(new Else())
+  }
+
+  // end `if` statement (needed if gen.if was used only with condition)
+  endIf(): CodeGen {
+    return this._endBlockNode(If, Else)
+  }
+
+  private _for(node: For, forBody?: Block): CodeGen {
+    this._blockNode(node)
+    if (forBody) this.code(forBody).endFor()
+    return this
+  }
+
+  // a generic `for` clause (or statement if `forBody` is passed)
+  for(iteration: Code, forBody?: Block): CodeGen {
+    return this._for(new ForLoop(iteration), forBody)
+  }
+
+  // `for` statement for a range of values
+  forRange(
+    nameOrPrefix: Name | string,
+    from: SafeExpr,
+    to: SafeExpr,
+    forBody: (index: Name) => void,
+    varKind: Code = this.opts.es5 ? varKinds.var : varKinds.let
+  ): CodeGen {
+    const name = this._scope.toName(nameOrPrefix)
+    return this._for(new ForRange(varKind, name, from, to), () => forBody(name))
+  }
+
+  // `for-of` statement (in es5 mode replace with a normal for loop)
+  forOf(
+    nameOrPrefix: Name | string,
+    iterable: Code,
+    forBody: (item: Name) => void,
+    varKind: Code = varKinds.const
+  ): CodeGen {
+    const name = this._scope.toName(nameOrPrefix)
+    if (this.opts.es5) {
+      const arr = iterable instanceof Name ? iterable : this.var("_arr", iterable)
+      return this.forRange("_i", 0, _`${arr}.length`, (i) => {
+        this.var(name, _`${arr}[${i}]`)
+        forBody(name)
+      })
+    }
+    return this._for(new ForIter("of", varKind, name, iterable), () => forBody(name))
+  }
+
+  // `for-in` statement.
+  // With option `ownProperties` replaced with a `for-of` loop for object keys
+  forIn(
+    nameOrPrefix: Name | string,
+    obj: Code,
+    forBody: (item: Name) => void,
+    varKind: Code = this.opts.es5 ? varKinds.var : varKinds.const
+  ): CodeGen {
+    if (this.opts.ownProperties) {
+      return this.forOf(nameOrPrefix, _`Object.keys(${obj})`, forBody)
+    }
+    const name = this._scope.toName(nameOrPrefix)
+    return this._for(new ForIter("in", varKind, name, obj), () => forBody(name))
+  }
+
+  // end `for` loop
+  endFor(): CodeGen {
+    return this._endBlockNode(For)
+  }
+
+  // `label` statement
+  label(label: Name): CodeGen {
+    return this._leafNode(new Label(label))
+  }
+
+  // `break` statement
+  break(label?: Code): CodeGen {
+    return this._leafNode(new Break(label))
+  }
+
+  // `return` statement
+  return(value: Block | SafeExpr): CodeGen {
+    const node = new Return()
+    this._blockNode(node)
+    this.code(value)
+    if (node.nodes.length !== 1) throw new Error('CodeGen: "return" should have one node')
+    return this._endBlockNode(Return)
+  }
+
+  // `try` statement
+  try(tryBody: Block, catchCode?: (e: Name) => void, finallyCode?: Block): CodeGen {
+    if (!catchCode && !finallyCode) throw new Error('CodeGen: "try" without "catch" and "finally"')
+    const node = new Try()
+    this._blockNode(node)
+    this.code(tryBody)
+    if (catchCode) {
+      const error = this.name("e")
+      this._currNode = node.catch = new Catch(error)
+      catchCode(error)
+    }
+    if (finallyCode) {
+      this._currNode = node.finally = new Finally()
+      this.code(finallyCode)
+    }
+    return this._endBlockNode(Catch, Finally)
+  }
+
+  // `throw` statement
+  throw(error: Code): CodeGen {
+    return this._leafNode(new Throw(error))
+  }
+
+  // start self-balancing block
+  block(body?: Block, nodeCount?: number): CodeGen {
+    this._blockStarts.push(this._nodes.length)
+    if (body) this.code(body).endBlock(nodeCount)
+    return this
+  }
+
+  // end the current self-balancing block
+  endBlock(nodeCount?: number): CodeGen {
+    const len = this._blockStarts.pop()
+    if (len === undefined) throw new Error("CodeGen: not in self-balancing block")
+    const toClose = this._nodes.length - len
+    if (toClose < 0 || (nodeCount !== undefined && toClose !== nodeCount)) {
+      throw new Error(`CodeGen: wrong number of nodes: ${toClose} vs ${nodeCount} expected`)
+    }
+    this._nodes.length = len
+    return this
+  }
+
+  // `function` heading (or definition if funcBody is passed)
+  func(name: Name, args: Code = nil, async?: boolean, funcBody?: Block): CodeGen {
+    this._blockNode(new Func(name, args, async))
+    if (funcBody) this.code(funcBody).endFunc()
+    return this
+  }
+
+  // end function definition
+  endFunc(): CodeGen {
+    return this._endBlockNode(Func)
+  }
+
+  optimize(n = 1): void {
+    while (n-- > 0) {
+      this._root.optimizeNodes()
+      this._root.optimizeNames(this._root.names, this._constants)
+    }
+  }
+
+  private _leafNode(node: LeafNode): CodeGen {
+    this._currNode.nodes.push(node)
+    return this
+  }
+
+  private _blockNode(node: StartBlockNode): void {
+    this._currNode.nodes.push(node)
+    this._nodes.push(node)
+  }
+
+  private _endBlockNode(N1: EndBlockNodeType, N2?: EndBlockNodeType): CodeGen {
+    const n = this._currNode
+    if (n instanceof N1 || (N2 && n instanceof N2)) {
+      this._nodes.pop()
+      return this
+    }
+    throw new Error(`CodeGen: not in block "${N2 ? `${N1.kind}/${N2.kind}` : N1.kind}"`)
+  }
+
+  private _elseNode(node: If | Else): CodeGen {
+    const n = this._currNode
+    if (!(n instanceof If)) {
+      throw new Error('CodeGen: "else" without "if"')
+    }
+    this._currNode = n.else = node
+    return this
+  }
+
+  private get _root(): Root {
+    return this._nodes[0] as Root
+  }
+
+  private get _currNode(): ParentNode {
+    const ns = this._nodes
+    return ns[ns.length - 1]
+  }
+
+  private set _currNode(node: ParentNode) {
+    const ns = this._nodes
+    ns[ns.length - 1] = node
+  }
+
+  // get nodeCount(): number {
+  //   return this._root.count
+  // }
+}
+
+function addNames(names: UsedNames, from: UsedNames): UsedNames {
+  for (const n in from) names[n] = (names[n] || 0) + (from[n] || 0)
+  return names
+}
+
+function addExprNames(names: UsedNames, from: SafeExpr): UsedNames {
+  return from instanceof _CodeOrName ? addNames(names, from.names) : names
+}
+
+function optimizeExpr<T extends SafeExpr | Code>(expr: T, names: UsedNames, constants: Constants): T
+function optimizeExpr(expr: SafeExpr, names: UsedNames, constants: Constants): SafeExpr {
+  if (expr instanceof Name) return replaceName(expr)
+  if (!canOptimize(expr)) return expr
+  return new _Code(
+    expr._items.reduce((items: CodeItem[], c: SafeExpr | string) => {
+      if (c instanceof Name) c = replaceName(c)
+      if (c instanceof _Code) items.push(...c._items)
+      else items.push(c)
+      return items
+    }, [])
+  )
+
+  function replaceName(n: Name): SafeExpr {
+    const c = constants[n.str]
+    if (c === undefined || names[n.str] !== 1) return n
+    delete names[n.str]
+    return c
+  }
+
+  function canOptimize(e: SafeExpr): e is _Code {
+    return (
+      e instanceof _Code &&
+      e._items.some(
+        (c) => c instanceof Name && names[c.str] === 1 && constants[c.str] !== undefined
+      )
+    )
+  }
+}
+
+function subtractNames(names: UsedNames, from: UsedNames): void {
+  for (const n in from) names[n] = (names[n] || 0) - (from[n] || 0)
+}
+
+export function not<T extends Code | SafeExpr>(x: T): T
+export function not(x: Code | SafeExpr): Code | SafeExpr {
+  return typeof x == "boolean" || typeof x == "number" || x === null ? !x : _`!${par(x)}`
+}
+
+const andCode = mappend(operators.AND)
+
+// boolean AND (&&) expression with the passed arguments
+export function and(...args: Code[]): Code {
+  return args.reduce(andCode)
+}
+
+const orCode = mappend(operators.OR)
+
+// boolean OR (||) expression with the passed arguments
+export function or(...args: Code[]): Code {
+  return args.reduce(orCode)
+}
+
+type MAppend = (x: Code, y: Code) => Code
+
+function mappend(op: Code): MAppend {
+  return (x, y) => (x === nil ? y : y === nil ? x : _`${par(x)} ${op} ${par(y)}`)
+}
+
+function par(x: Code): Code {
+  return x instanceof Name ? x : _`(${x})`
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/compile/codegen/scope.ts

@@ -0,0 +1,215 @@
+import {_, nil, Code, Name} from "./code"
+
+interface NameGroup {
+  prefix: string
+  index: number
+}
+
+export interface NameValue {
+  ref: ValueReference // this is the reference to any value that can be referred to from generated code via `globals` var in the closure
+  key?: unknown // any key to identify a global to avoid duplicates, if not passed ref is used
+  code?: Code // this is the code creating the value needed for standalone code wit_out closure - can be a primitive value, function or import (`require`)
+}
+
+export type ValueReference = unknown // possibly make CodeGen parameterized type on this type
+
+class ValueError extends Error {
+  readonly value?: NameValue
+  constructor(name: ValueScopeName) {
+    super(`CodeGen: "code" for ${name} not defined`)
+    this.value = name.value
+  }
+}
+
+interface ScopeOptions {
+  prefixes?: Set<string>
+  parent?: Scope
+}
+
+interface ValueScopeOptions extends ScopeOptions {
+  scope: ScopeStore
+  es5?: boolean
+  lines?: boolean
+}
+
+export type ScopeStore = Record<string, ValueReference[] | undefined>
+
+type ScopeValues = {
+  [Prefix in string]?: Map<unknown, ValueScopeName>
+}
+
+export type ScopeValueSets = {
+  [Prefix in string]?: Set<ValueScopeName>
+}
+
+export enum UsedValueState {
+  Started,
+  Completed,
+}
+
+export type UsedScopeValues = {
+  [Prefix in string]?: Map<ValueScopeName, UsedValueState | undefined>
+}
+
+export const varKinds = {
+  const: new Name("const"),
+  let: new Name("let"),
+  var: new Name("var"),
+}
+
+export class Scope {
+  protected readonly _names: {[Prefix in string]?: NameGroup} = {}
+  protected readonly _prefixes?: Set<string>
+  protected readonly _parent?: Scope
+
+  constructor({prefixes, parent}: ScopeOptions = {}) {
+    this._prefixes = prefixes
+    this._parent = parent
+  }
+
+  toName(nameOrPrefix: Name | string): Name {
+    return nameOrPrefix instanceof Name ? nameOrPrefix : this.name(nameOrPrefix)
+  }
+
+  name(prefix: string): Name {
+    return new Name(this._newName(prefix))
+  }
+
+  protected _newName(prefix: string): string {
+    const ng = this._names[prefix] || this._nameGroup(prefix)
+    return `${prefix}${ng.index++}`
+  }
+
+  private _nameGroup(prefix: string): NameGroup {
+    if (this._parent?._prefixes?.has(prefix) || (this._prefixes && !this._prefixes.has(prefix))) {
+      throw new Error(`CodeGen: prefix "${prefix}" is not allowed in this scope`)
+    }
+    return (this._names[prefix] = {prefix, index: 0})
+  }
+}
+
+interface ScopePath {
+  property: string
+  itemIndex: number
+}
+
+export class ValueScopeName extends Name {
+  readonly prefix: string
+  value?: NameValue
+  scopePath?: Code
+
+  constructor(prefix: string, nameStr: string) {
+    super(nameStr)
+    this.prefix = prefix
+  }
+
+  setValue(value: NameValue, {property, itemIndex}: ScopePath): void {
+    this.value = value
+    this.scopePath = _`.${new Name(property)}[${itemIndex}]`
+  }
+}
+
+interface VSOptions extends ValueScopeOptions {
+  _n: Code
+}
+
+const line = _`\n`
+
+export class ValueScope extends Scope {
+  protected readonly _values: ScopeValues = {}
+  protected readonly _scope: ScopeStore
+  readonly opts: VSOptions
+
+  constructor(opts: ValueScopeOptions) {
+    super(opts)
+    this._scope = opts.scope
+    this.opts = {...opts, _n: opts.lines ? line : nil}
+  }
+
+  get(): ScopeStore {
+    return this._scope
+  }
+
+  name(prefix: string): ValueScopeName {
+    return new ValueScopeName(prefix, this._newName(prefix))
+  }
+
+  value(nameOrPrefix: ValueScopeName | string, value: NameValue): ValueScopeName {
+    if (value.ref === undefined) throw new Error("CodeGen: ref must be passed in value")
+    const name = this.toName(nameOrPrefix) as ValueScopeName
+    const {prefix} = name
+    const valueKey = value.key ?? value.ref
+    let vs = this._values[prefix]
+    if (vs) {
+      const _name = vs.get(valueKey)
+      if (_name) return _name
+    } else {
+      vs = this._values[prefix] = new Map()
+    }
+    vs.set(valueKey, name)
+
+    const s = this._scope[prefix] || (this._scope[prefix] = [])
+    const itemIndex = s.length
+    s[itemIndex] = value.ref
+    name.setValue(value, {property: prefix, itemIndex})
+    return name
+  }
+
+  getValue(prefix: string, keyOrRef: unknown): ValueScopeName | undefined {
+    const vs = this._values[prefix]
+    if (!vs) return
+    return vs.get(keyOrRef)
+  }
+
+  scopeRefs(scopeName: Name, values: ScopeValues | ScopeValueSets = this._values): Code {
+    return this._reduceValues(values, (name: ValueScopeName) => {
+      if (name.scopePath === undefined) throw new Error(`CodeGen: name "${name}" has no value`)
+      return _`${scopeName}${name.scopePath}`
+    })
+  }
+
+  scopeCode(
+    values: ScopeValues | ScopeValueSets = this._values,
+    usedValues?: UsedScopeValues,
+    getCode?: (n: ValueScopeName) => Code | undefined
+  ): Code {
+    return this._reduceValues(
+      values,
+      (name: ValueScopeName) => {
+        if (name.value === undefined) throw new Error(`CodeGen: name "${name}" has no value`)
+        return name.value.code
+      },
+      usedValues,
+      getCode
+    )
+  }
+
+  private _reduceValues(
+    values: ScopeValues | ScopeValueSets,
+    valueCode: (n: ValueScopeName) => Code | undefined,
+    usedValues: UsedScopeValues = {},
+    getCode?: (n: ValueScopeName) => Code | undefined
+  ): Code {
+    let code: Code = nil
+    for (const prefix in values) {
+      const vs = values[prefix]
+      if (!vs) continue
+      const nameSet = (usedValues[prefix] = usedValues[prefix] || new Map())
+      vs.forEach((name: ValueScopeName) => {
+        if (nameSet.has(name)) return
+        nameSet.set(name, UsedValueState.Started)
+        let c = valueCode(name)
+        if (c) {
+          const def = this.opts.es5 ? varKinds.var : varKinds.const
+          code = _`${code}${def} ${name} = ${c};${this.opts._n}`
+        } else if ((c = getCode?.(name))) {
+          code = _`${code}${c}${this.opts._n}`
+        } else {
+          throw new ValueError(name)
+        }
+        nameSet.set(name, UsedValueState.Completed)
+      })
+    }
+    return code
+  }
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/compile/errors.ts

@@ -0,0 +1,184 @@
+import type {KeywordErrorCxt, KeywordErrorDefinition} from "../types"
+import type {SchemaCxt} from "./index"
+import {CodeGen, _, str, strConcat, Code, Name} from "./codegen"
+import {SafeExpr} from "./codegen/code"
+import {getErrorPath, Type} from "./util"
+import N from "./names"
+
+export const keywordError: KeywordErrorDefinition = {
+  message: ({keyword}) => str`must pass "${keyword}" keyword validation`,
+}
+
+export const keyword$DataError: KeywordErrorDefinition = {
+  message: ({keyword, schemaType}) =>
+    schemaType
+      ? str`"${keyword}" keyword must be ${schemaType} ($data)`
+      : str`"${keyword}" keyword is invalid ($data)`,
+}
+
+export interface ErrorPaths {
+  instancePath?: Code
+  schemaPath?: string
+  parentSchema?: boolean
+}
+
+export function reportError(
+  cxt: KeywordErrorCxt,
+  error: KeywordErrorDefinition = keywordError,
+  errorPaths?: ErrorPaths,
+  overrideAllErrors?: boolean
+): void {
+  const {it} = cxt
+  const {gen, compositeRule, allErrors} = it
+  const errObj = errorObjectCode(cxt, error, errorPaths)
+  if (overrideAllErrors ?? (compositeRule || allErrors)) {
+    addError(gen, errObj)
+  } else {
+    returnErrors(it, _`[${errObj}]`)
+  }
+}
+
+export function reportExtraError(
+  cxt: KeywordErrorCxt,
+  error: KeywordErrorDefinition = keywordError,
+  errorPaths?: ErrorPaths
+): void {
+  const {it} = cxt
+  const {gen, compositeRule, allErrors} = it
+  const errObj = errorObjectCode(cxt, error, errorPaths)
+  addError(gen, errObj)
+  if (!(compositeRule || allErrors)) {
+    returnErrors(it, N.vErrors)
+  }
+}
+
+export function resetErrorsCount(gen: CodeGen, errsCount: Name): void {
+  gen.assign(N.errors, errsCount)
+  gen.if(_`${N.vErrors} !== null`, () =>
+    gen.if(
+      errsCount,
+      () => gen.assign(_`${N.vErrors}.length`, errsCount),
+      () => gen.assign(N.vErrors, null)
+    )
+  )
+}
+
+export function extendErrors({
+  gen,
+  keyword,
+  schemaValue,
+  data,
+  errsCount,
+  it,
+}: KeywordErrorCxt): void {
+  /* istanbul ignore if */
+  if (errsCount === undefined) throw new Error("ajv implementation error")
+  const err = gen.name("err")
+  gen.forRange("i", errsCount, N.errors, (i) => {
+    gen.const(err, _`${N.vErrors}[${i}]`)
+    gen.if(_`${err}.instancePath === undefined`, () =>
+      gen.assign(_`${err}.instancePath`, strConcat(N.instancePath, it.errorPath))
+    )
+    gen.assign(_`${err}.schemaPath`, str`${it.errSchemaPath}/${keyword}`)
+    if (it.opts.verbose) {
+      gen.assign(_`${err}.schema`, schemaValue)
+      gen.assign(_`${err}.data`, data)
+    }
+  })
+}
+
+function addError(gen: CodeGen, errObj: Code): void {
+  const err = gen.const("err", errObj)
+  gen.if(
+    _`${N.vErrors} === null`,
+    () => gen.assign(N.vErrors, _`[${err}]`),
+    _`${N.vErrors}.push(${err})`
+  )
+  gen.code(_`${N.errors}++`)
+}
+
+function returnErrors(it: SchemaCxt, errs: Code): void {
+  const {gen, validateName, schemaEnv} = it
+  if (schemaEnv.$async) {
+    gen.throw(_`new ${it.ValidationError as Name}(${errs})`)
+  } else {
+    gen.assign(_`${validateName}.errors`, errs)
+    gen.return(false)
+  }
+}
+
+const E = {
+  keyword: new Name("keyword"),
+  schemaPath: new Name("schemaPath"), // also used in JTD errors
+  params: new Name("params"),
+  propertyName: new Name("propertyName"),
+  message: new Name("message"),
+  schema: new Name("schema"),
+  parentSchema: new Name("parentSchema"),
+}
+
+function errorObjectCode(
+  cxt: KeywordErrorCxt,
+  error: KeywordErrorDefinition,
+  errorPaths?: ErrorPaths
+): Code {
+  const {createErrors} = cxt.it
+  if (createErrors === false) return _`{}`
+  return errorObject(cxt, error, errorPaths)
+}
+
+function errorObject(
+  cxt: KeywordErrorCxt,
+  error: KeywordErrorDefinition,
+  errorPaths: ErrorPaths = {}
+): Code {
+  const {gen, it} = cxt
+  const keyValues: [Name, SafeExpr | string][] = [
+    errorInstancePath(it, errorPaths),
+    errorSchemaPath(cxt, errorPaths),
+  ]
+  extraErrorProps(cxt, error, keyValues)
+  return gen.object(...keyValues)
+}
+
+function errorInstancePath({errorPath}: SchemaCxt, {instancePath}: ErrorPaths): [Name, Code] {
+  const instPath = instancePath
+    ? str`${errorPath}${getErrorPath(instancePath, Type.Str)}`
+    : errorPath
+  return [N.instancePath, strConcat(N.instancePath, instPath)]
+}
+
+function errorSchemaPath(
+  {keyword, it: {errSchemaPath}}: KeywordErrorCxt,
+  {schemaPath, parentSchema}: ErrorPaths
+): [Name, string | Code] {
+  let schPath = parentSchema ? errSchemaPath : str`${errSchemaPath}/${keyword}`
+  if (schemaPath) {
+    schPath = str`${schPath}${getErrorPath(schemaPath, Type.Str)}`
+  }
+  return [E.schemaPath, schPath]
+}
+
+function extraErrorProps(
+  cxt: KeywordErrorCxt,
+  {params, message}: KeywordErrorDefinition,
+  keyValues: [Name, SafeExpr | string][]
+): void {
+  const {keyword, data, schemaValue, it} = cxt
+  const {opts, propertyName, topSchemaRef, schemaPath} = it
+  keyValues.push(
+    [E.keyword, keyword],
+    [E.params, typeof params == "function" ? params(cxt) : params || _`{}`]
+  )
+  if (opts.messages) {
+    keyValues.push([E.message, typeof message == "function" ? message(cxt) : message])
+  }
+  if (opts.verbose) {
+    keyValues.push(
+      [E.schema, schemaValue],
+      [E.parentSchema, _`${topSchemaRef}${schemaPath}`],
+      [N.data, data]
+    )
+  }
+  if (propertyName) keyValues.push([E.propertyName, propertyName])
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/compile/index.ts

@@ -0,0 +1,324 @@
+import type {
+  AnySchema,
+  AnySchemaObject,
+  AnyValidateFunction,
+  AsyncValidateFunction,
+  EvaluatedProperties,
+  EvaluatedItems,
+} from "../types"
+import type Ajv from "../core"
+import type {InstanceOptions} from "../core"
+import {CodeGen, _, nil, stringify, Name, Code, ValueScopeName} from "./codegen"
+import ValidationError from "../runtime/validation_error"
+import N from "./names"
+import {LocalRefs, getFullPath, _getFullPath, inlineRef, normalizeId, resolveUrl} from "./resolve"
+import {schemaHasRulesButRef, unescapeFragment} from "./util"
+import {validateFunctionCode} from "./validate"
+import {URIComponent} from "fast-uri"
+import {JSONType} from "./rules"
+
+export type SchemaRefs = {
+  [Ref in string]?: SchemaEnv | AnySchema
+}
+
+export interface SchemaCxt {
+  readonly gen: CodeGen
+  readonly allErrors?: boolean // validation mode - whether to collect all errors or break on error
+  readonly data: Name // Name with reference to the current part of data instance
+  readonly parentData: Name // should be used in keywords modifying data
+  readonly parentDataProperty: Code | number // should be used in keywords modifying data
+  readonly dataNames: Name[]
+  readonly dataPathArr: (Code | number)[]
+  readonly dataLevel: number // the level of the currently validated data,
+  // it can be used to access both the property names and the data on all levels from the top.
+  dataTypes: JSONType[] // data types applied to the current part of data instance
+  definedProperties: Set<string> // set of properties to keep track of for required checks
+  readonly topSchemaRef: Code
+  readonly validateName: Name
+  evaluated?: Name
+  readonly ValidationError?: Name
+  readonly schema: AnySchema // current schema object - equal to parentSchema passed via KeywordCxt
+  readonly schemaEnv: SchemaEnv
+  readonly rootId: string
+  baseId: string // the current schema base URI that should be used as the base for resolving URIs in references (\$ref)
+  readonly schemaPath: Code // the run-time expression that evaluates to the property name of the current schema
+  readonly errSchemaPath: string // this is actual string, should not be changed to Code
+  readonly errorPath: Code
+  readonly propertyName?: Name
+  readonly compositeRule?: boolean // true indicates that the current schema is inside the compound keyword,
+  // where failing some rule doesn't mean validation failure (`anyOf`, `oneOf`, `not`, `if`).
+  // This flag is used to determine whether you can return validation result immediately after any error in case the option `allErrors` is not `true.
+  // You only need to use it if you have many steps in your keywords and potentially can define multiple errors.
+  props?: EvaluatedProperties | Name // properties evaluated by this schema - used by parent schema or assigned to validation function
+  items?: EvaluatedItems | Name // last item evaluated by this schema - used by parent schema or assigned to validation function
+  jtdDiscriminator?: string
+  jtdMetadata?: boolean
+  readonly createErrors?: boolean
+  readonly opts: InstanceOptions // Ajv instance option.
+  readonly self: Ajv // current Ajv instance
+}
+
+export interface SchemaObjCxt extends SchemaCxt {
+  readonly schema: AnySchemaObject
+}
+interface SchemaEnvArgs {
+  readonly schema: AnySchema
+  readonly schemaId?: "$id" | "id"
+  readonly root?: SchemaEnv
+  readonly baseId?: string
+  readonly schemaPath?: string
+  readonly localRefs?: LocalRefs
+  readonly meta?: boolean
+}
+
+export class SchemaEnv implements SchemaEnvArgs {
+  readonly schema: AnySchema
+  readonly schemaId?: "$id" | "id"
+  readonly root: SchemaEnv
+  baseId: string // TODO possibly, it should be readonly
+  schemaPath?: string
+  localRefs?: LocalRefs
+  readonly meta?: boolean
+  readonly $async?: boolean // true if the current schema is asynchronous.
+  readonly refs: SchemaRefs = {}
+  readonly dynamicAnchors: {[Ref in string]?: true} = {}
+  validate?: AnyValidateFunction
+  validateName?: ValueScopeName
+  serialize?: (data: unknown) => string
+  serializeName?: ValueScopeName
+  parse?: (data: string) => unknown
+  parseName?: ValueScopeName
+
+  constructor(env: SchemaEnvArgs) {
+    let schema: AnySchemaObject | undefined
+    if (typeof env.schema == "object") schema = env.schema
+    this.schema = env.schema
+    this.schemaId = env.schemaId
+    this.root = env.root || this
+    this.baseId = env.baseId ?? normalizeId(schema?.[env.schemaId || "$id"])
+    this.schemaPath = env.schemaPath
+    this.localRefs = env.localRefs
+    this.meta = env.meta
+    this.$async = schema?.$async
+    this.refs = {}
+  }
+}
+
+// let codeSize = 0
+// let nodeCount = 0
+
+// Compiles schema in SchemaEnv
+export function compileSchema(this: Ajv, sch: SchemaEnv): SchemaEnv {
+  // TODO refactor - remove compilations
+  const _sch = getCompilingSchema.call(this, sch)
+  if (_sch) return _sch
+  const rootId = getFullPath(this.opts.uriResolver, sch.root.baseId) // TODO if getFullPath removed 1 tests fails
+  const {es5, lines} = this.opts.code
+  const {ownProperties} = this.opts
+  const gen = new CodeGen(this.scope, {es5, lines, ownProperties})
+  let _ValidationError
+  if (sch.$async) {
+    _ValidationError = gen.scopeValue("Error", {
+      ref: ValidationError,
+      code: _`require("ajv/dist/runtime/validation_error").default`,
+    })
+  }
+
+  const validateName = gen.scopeName("validate")
+  sch.validateName = validateName
+
+  const schemaCxt: SchemaCxt = {
+    gen,
+    allErrors: this.opts.allErrors,
+    data: N.data,
+    parentData: N.parentData,
+    parentDataProperty: N.parentDataProperty,
+    dataNames: [N.data],
+    dataPathArr: [nil], // TODO can its length be used as dataLevel if nil is removed?
+    dataLevel: 0,
+    dataTypes: [],
+    definedProperties: new Set<string>(),
+    topSchemaRef: gen.scopeValue(
+      "schema",
+      this.opts.code.source === true
+        ? {ref: sch.schema, code: stringify(sch.schema)}
+        : {ref: sch.schema}
+    ),
+    validateName,
+    ValidationError: _ValidationError,
+    schema: sch.schema,
+    schemaEnv: sch,
+    rootId,
+    baseId: sch.baseId || rootId,
+    schemaPath: nil,
+    errSchemaPath: sch.schemaPath || (this.opts.jtd ? "" : "#"),
+    errorPath: _`""`,
+    opts: this.opts,
+    self: this,
+  }
+
+  let sourceCode: string | undefined
+  try {
+    this._compilations.add(sch)
+    validateFunctionCode(schemaCxt)
+    gen.optimize(this.opts.code.optimize)
+    // gen.optimize(1)
+    const validateCode = gen.toString()
+    sourceCode = `${gen.scopeRefs(N.scope)}return ${validateCode}`
+    // console.log((codeSize += sourceCode.length), (nodeCount += gen.nodeCount))
+    if (this.opts.code.process) sourceCode = this.opts.code.process(sourceCode, sch)
+    // console.log("\n\n\n *** \n", sourceCode)
+    const makeValidate = new Function(`${N.self}`, `${N.scope}`, sourceCode)
+    const validate: AnyValidateFunction = makeValidate(this, this.scope.get())
+    this.scope.value(validateName, {ref: validate})
+
+    validate.errors = null
+    validate.schema = sch.schema
+    validate.schemaEnv = sch
+    if (sch.$async) (validate as AsyncValidateFunction).$async = true
+    if (this.opts.code.source === true) {
+      validate.source = {validateName, validateCode, scopeValues: gen._values}
+    }
+    if (this.opts.unevaluated) {
+      const {props, items} = schemaCxt
+      validate.evaluated = {
+        props: props instanceof Name ? undefined : props,
+        items: items instanceof Name ? undefined : items,
+        dynamicProps: props instanceof Name,
+        dynamicItems: items instanceof Name,
+      }
+      if (validate.source) validate.source.evaluated = stringify(validate.evaluated)
+    }
+    sch.validate = validate
+    return sch
+  } catch (e) {
+    delete sch.validate
+    delete sch.validateName
+    if (sourceCode) this.logger.error("Error compiling schema, function code:", sourceCode)
+    // console.log("\n\n\n *** \n", sourceCode, this.opts)
+    throw e
+  } finally {
+    this._compilations.delete(sch)
+  }
+}
+
+export function resolveRef(
+  this: Ajv,
+  root: SchemaEnv,
+  baseId: string,
+  ref: string
+): AnySchema | SchemaEnv | undefined {
+  ref = resolveUrl(this.opts.uriResolver, baseId, ref)
+  const schOrFunc = root.refs[ref]
+  if (schOrFunc) return schOrFunc
+
+  let _sch = resolve.call(this, root, ref)
+  if (_sch === undefined) {
+    const schema = root.localRefs?.[ref] // TODO maybe localRefs should hold SchemaEnv
+    const {schemaId} = this.opts
+    if (schema) _sch = new SchemaEnv({schema, schemaId, root, baseId})
+  }
+
+  if (_sch === undefined) return
+  return (root.refs[ref] = inlineOrCompile.call(this, _sch))
+}
+
+function inlineOrCompile(this: Ajv, sch: SchemaEnv): AnySchema | SchemaEnv {
+  if (inlineRef(sch.schema, this.opts.inlineRefs)) return sch.schema
+  return sch.validate ? sch : compileSchema.call(this, sch)
+}
+
+// Index of schema compilation in the currently compiled list
+export function getCompilingSchema(this: Ajv, schEnv: SchemaEnv): SchemaEnv | void {
+  for (const sch of this._compilations) {
+    if (sameSchemaEnv(sch, schEnv)) return sch
+  }
+}
+
+function sameSchemaEnv(s1: SchemaEnv, s2: SchemaEnv): boolean {
+  return s1.schema === s2.schema && s1.root === s2.root && s1.baseId === s2.baseId
+}
+
+// resolve and compile the references ($ref)
+// TODO returns AnySchemaObject (if the schema can be inlined) or validation function
+function resolve(
+  this: Ajv,
+  root: SchemaEnv, // information about the root schema for the current schema
+  ref: string // reference to resolve
+): SchemaEnv | undefined {
+  let sch
+  while (typeof (sch = this.refs[ref]) == "string") ref = sch
+  return sch || this.schemas[ref] || resolveSchema.call(this, root, ref)
+}
+
+// Resolve schema, its root and baseId
+export function resolveSchema(
+  this: Ajv,
+  root: SchemaEnv, // root object with properties schema, refs TODO below SchemaEnv is assigned to it
+  ref: string // reference to resolve
+): SchemaEnv | undefined {
+  const p = this.opts.uriResolver.parse(ref)
+  const refPath = _getFullPath(this.opts.uriResolver, p)
+  let baseId = getFullPath(this.opts.uriResolver, root.baseId, undefined)
+  // TODO `Object.keys(root.schema).length > 0` should not be needed - but removing breaks 2 tests
+  if (Object.keys(root.schema).length > 0 && refPath === baseId) {
+    return getJsonPointer.call(this, p, root)
+  }
+
+  const id = normalizeId(refPath)
+  const schOrRef = this.refs[id] || this.schemas[id]
+  if (typeof schOrRef == "string") {
+    const sch = resolveSchema.call(this, root, schOrRef)
+    if (typeof sch?.schema !== "object") return
+    return getJsonPointer.call(this, p, sch)
+  }
+
+  if (typeof schOrRef?.schema !== "object") return
+  if (!schOrRef.validate) compileSchema.call(this, schOrRef)
+  if (id === normalizeId(ref)) {
+    const {schema} = schOrRef
+    const {schemaId} = this.opts
+    const schId = schema[schemaId]
+    if (schId) baseId = resolveUrl(this.opts.uriResolver, baseId, schId)
+    return new SchemaEnv({schema, schemaId, root, baseId})
+  }
+  return getJsonPointer.call(this, p, schOrRef)
+}
+
+const PREVENT_SCOPE_CHANGE = new Set([
+  "properties",
+  "patternProperties",
+  "enum",
+  "dependencies",
+  "definitions",
+])
+
+function getJsonPointer(
+  this: Ajv,
+  parsedRef: URIComponent,
+  {baseId, schema, root}: SchemaEnv
+): SchemaEnv | undefined {
+  if (parsedRef.fragment?.[0] !== "/") return
+  for (const part of parsedRef.fragment.slice(1).split("/")) {
+    if (typeof schema === "boolean") return
+    const partSchema = schema[unescapeFragment(part)]
+    if (partSchema === undefined) return
+    schema = partSchema
+    // TODO PREVENT_SCOPE_CHANGE could be defined in keyword def?
+    const schId = typeof schema === "object" && schema[this.opts.schemaId]
+    if (!PREVENT_SCOPE_CHANGE.has(part) && schId) {
+      baseId = resolveUrl(this.opts.uriResolver, baseId, schId)
+    }
+  }
+  let env: SchemaEnv | undefined
+  if (typeof schema != "boolean" && schema.$ref && !schemaHasRulesButRef(schema, this.RULES)) {
+    const $ref = resolveUrl(this.opts.uriResolver, baseId, schema.$ref)
+    env = resolveSchema.call(this, root, $ref)
+  }
+  // even though resolution failed we need to return SchemaEnv to throw exception
+  // so that compileAsync loads missing schema.
+  const {schemaId} = this.opts
+  env = env || new SchemaEnv({schema, schemaId, root, baseId})
+  if (env.schema !== env.root.schema) return env
+  return undefined
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/compile/jtd/parse.ts

@@ -0,0 +1,411 @@
+import type Ajv from "../../core"
+import type {SchemaObject} from "../../types"
+import {jtdForms, JTDForm, SchemaObjectMap} from "./types"
+import {SchemaEnv, getCompilingSchema} from ".."
+import {_, str, and, or, nil, not, CodeGen, Code, Name, SafeExpr} from "../codegen"
+import MissingRefError from "../ref_error"
+import N from "../names"
+import {hasPropFunc} from "../../vocabularies/code"
+import {hasRef} from "../../vocabularies/jtd/ref"
+import {intRange, IntType} from "../../vocabularies/jtd/type"
+import {parseJson, parseJsonNumber, parseJsonString} from "../../runtime/parseJson"
+import {useFunc} from "../util"
+import validTimestamp from "../../runtime/timestamp"
+
+type GenParse = (cxt: ParseCxt) => void
+
+const genParse: {[F in JTDForm]: GenParse} = {
+  elements: parseElements,
+  values: parseValues,
+  discriminator: parseDiscriminator,
+  properties: parseProperties,
+  optionalProperties: parseProperties,
+  enum: parseEnum,
+  type: parseType,
+  ref: parseRef,
+}
+
+interface ParseCxt {
+  readonly gen: CodeGen
+  readonly self: Ajv // current Ajv instance
+  readonly schemaEnv: SchemaEnv
+  readonly definitions: SchemaObjectMap
+  schema: SchemaObject
+  data: Code
+  parseName: Name
+  char: Name
+}
+
+export default function compileParser(
+  this: Ajv,
+  sch: SchemaEnv,
+  definitions: SchemaObjectMap
+): SchemaEnv {
+  const _sch = getCompilingSchema.call(this, sch)
+  if (_sch) return _sch
+  const {es5, lines} = this.opts.code
+  const {ownProperties} = this.opts
+  const gen = new CodeGen(this.scope, {es5, lines, ownProperties})
+  const parseName = gen.scopeName("parse")
+  const cxt: ParseCxt = {
+    self: this,
+    gen,
+    schema: sch.schema as SchemaObject,
+    schemaEnv: sch,
+    definitions,
+    data: N.data,
+    parseName,
+    char: gen.name("c"),
+  }
+
+  let sourceCode: string | undefined
+  try {
+    this._compilations.add(sch)
+    sch.parseName = parseName
+    parserFunction(cxt)
+    gen.optimize(this.opts.code.optimize)
+    const parseFuncCode = gen.toString()
+    sourceCode = `${gen.scopeRefs(N.scope)}return ${parseFuncCode}`
+    const makeParse = new Function(`${N.scope}`, sourceCode)
+    const parse: (json: string) => unknown = makeParse(this.scope.get())
+    this.scope.value(parseName, {ref: parse})
+    sch.parse = parse
+  } catch (e) {
+    if (sourceCode) this.logger.error("Error compiling parser, function code:", sourceCode)
+    delete sch.parse
+    delete sch.parseName
+    throw e
+  } finally {
+    this._compilations.delete(sch)
+  }
+  return sch
+}
+
+const undef = _`undefined`
+
+function parserFunction(cxt: ParseCxt): void {
+  const {gen, parseName, char} = cxt
+  gen.func(parseName, _`${N.json}, ${N.jsonPos}, ${N.jsonPart}`, false, () => {
+    gen.let(N.data)
+    gen.let(char)
+    gen.assign(_`${parseName}.message`, undef)
+    gen.assign(_`${parseName}.position`, undef)
+    gen.assign(N.jsonPos, _`${N.jsonPos} || 0`)
+    gen.const(N.jsonLen, _`${N.json}.length`)
+    parseCode(cxt)
+    skipWhitespace(cxt)
+    gen.if(N.jsonPart, () => {
+      gen.assign(_`${parseName}.position`, N.jsonPos)
+      gen.return(N.data)
+    })
+    gen.if(_`${N.jsonPos} === ${N.jsonLen}`, () => gen.return(N.data))
+    jsonSyntaxError(cxt)
+  })
+}
+
+function parseCode(cxt: ParseCxt): void {
+  let form: JTDForm | undefined
+  for (const key of jtdForms) {
+    if (key in cxt.schema) {
+      form = key
+      break
+    }
+  }
+  if (form) parseNullable(cxt, genParse[form])
+  else parseEmpty(cxt)
+}
+
+const parseBoolean = parseBooleanToken(true, parseBooleanToken(false, jsonSyntaxError))
+
+function parseNullable(cxt: ParseCxt, parseForm: GenParse): void {
+  const {gen, schema, data} = cxt
+  if (!schema.nullable) return parseForm(cxt)
+  tryParseToken(cxt, "null", parseForm, () => gen.assign(data, null))
+}
+
+function parseElements(cxt: ParseCxt): void {
+  const {gen, schema, data} = cxt
+  parseToken(cxt, "[")
+  const ix = gen.let("i", 0)
+  gen.assign(data, _`[]`)
+  parseItems(cxt, "]", () => {
+    const el = gen.let("el")
+    parseCode({...cxt, schema: schema.elements, data: el})
+    gen.assign(_`${data}[${ix}++]`, el)
+  })
+}
+
+function parseValues(cxt: ParseCxt): void {
+  const {gen, schema, data} = cxt
+  parseToken(cxt, "{")
+  gen.assign(data, _`{}`)
+  parseItems(cxt, "}", () => parseKeyValue(cxt, schema.values))
+}
+
+function parseItems(cxt: ParseCxt, endToken: string, block: () => void): void {
+  tryParseItems(cxt, endToken, block)
+  parseToken(cxt, endToken)
+}
+
+function tryParseItems(cxt: ParseCxt, endToken: string, block: () => void): void {
+  const {gen} = cxt
+  gen.for(_`;${N.jsonPos}<${N.jsonLen} && ${jsonSlice(1)}!==${endToken};`, () => {
+    block()
+    tryParseToken(cxt, ",", () => gen.break(), hasItem)
+  })
+
+  function hasItem(): void {
+    tryParseToken(cxt, endToken, () => {}, jsonSyntaxError)
+  }
+}
+
+function parseKeyValue(cxt: ParseCxt, schema: SchemaObject): void {
+  const {gen} = cxt
+  const key = gen.let("key")
+  parseString({...cxt, data: key})
+  parseToken(cxt, ":")
+  parsePropertyValue(cxt, key, schema)
+}
+
+function parseDiscriminator(cxt: ParseCxt): void {
+  const {gen, data, schema} = cxt
+  const {discriminator, mapping} = schema
+  parseToken(cxt, "{")
+  gen.assign(data, _`{}`)
+  const startPos = gen.const("pos", N.jsonPos)
+  const value = gen.let("value")
+  const tag = gen.let("tag")
+  tryParseItems(cxt, "}", () => {
+    const key = gen.let("key")
+    parseString({...cxt, data: key})
+    parseToken(cxt, ":")
+    gen.if(
+      _`${key} === ${discriminator}`,
+      () => {
+        parseString({...cxt, data: tag})
+        gen.assign(_`${data}[${key}]`, tag)
+        gen.break()
+      },
+      () => parseEmpty({...cxt, data: value}) // can be discarded/skipped
+    )
+  })
+  gen.assign(N.jsonPos, startPos)
+  gen.if(_`${tag} === undefined`)
+  parsingError(cxt, str`discriminator tag not found`)
+  for (const tagValue in mapping) {
+    gen.elseIf(_`${tag} === ${tagValue}`)
+    parseSchemaProperties({...cxt, schema: mapping[tagValue]}, discriminator)
+  }
+  gen.else()
+  parsingError(cxt, str`discriminator value not in schema`)
+  gen.endIf()
+}
+
+function parseProperties(cxt: ParseCxt): void {
+  const {gen, data} = cxt
+  parseToken(cxt, "{")
+  gen.assign(data, _`{}`)
+  parseSchemaProperties(cxt)
+}
+
+function parseSchemaProperties(cxt: ParseCxt, discriminator?: string): void {
+  const {gen, schema, data} = cxt
+  const {properties, optionalProperties, additionalProperties} = schema
+  parseItems(cxt, "}", () => {
+    const key = gen.let("key")
+    parseString({...cxt, data: key})
+    parseToken(cxt, ":")
+    gen.if(false)
+    parseDefinedProperty(cxt, key, properties)
+    parseDefinedProperty(cxt, key, optionalProperties)
+    if (discriminator) {
+      gen.elseIf(_`${key} === ${discriminator}`)
+      const tag = gen.let("tag")
+      parseString({...cxt, data: tag}) // can be discarded, it is already assigned
+    }
+    gen.else()
+    if (additionalProperties) {
+      parseEmpty({...cxt, data: _`${data}[${key}]`})
+    } else {
+      parsingError(cxt, str`property ${key} not allowed`)
+    }
+    gen.endIf()
+  })
+  if (properties) {
+    const hasProp = hasPropFunc(gen)
+    const allProps: Code = and(
+      ...Object.keys(properties).map((p): Code => _`${hasProp}.call(${data}, ${p})`)
+    )
+    gen.if(not(allProps), () => parsingError(cxt, str`missing required properties`))
+  }
+}
+
+function parseDefinedProperty(cxt: ParseCxt, key: Name, schemas: SchemaObjectMap = {}): void {
+  const {gen} = cxt
+  for (const prop in schemas) {
+    gen.elseIf(_`${key} === ${prop}`)
+    parsePropertyValue(cxt, key, schemas[prop] as SchemaObject)
+  }
+}
+
+function parsePropertyValue(cxt: ParseCxt, key: Name, schema: SchemaObject): void {
+  parseCode({...cxt, schema, data: _`${cxt.data}[${key}]`})
+}
+
+function parseType(cxt: ParseCxt): void {
+  const {gen, schema, data, self} = cxt
+  switch (schema.type) {
+    case "boolean":
+      parseBoolean(cxt)
+      break
+    case "string":
+      parseString(cxt)
+      break
+    case "timestamp": {
+      parseString(cxt)
+      const vts = useFunc(gen, validTimestamp)
+      const {allowDate, parseDate} = self.opts
+      const notValid = allowDate ? _`!${vts}(${data}, true)` : _`!${vts}(${data})`
+      const fail: Code = parseDate
+        ? or(notValid, _`(${data} = new Date(${data}), false)`, _`isNaN(${data}.valueOf())`)
+        : notValid
+      gen.if(fail, () => parsingError(cxt, str`invalid timestamp`))
+      break
+    }
+    case "float32":
+    case "float64":
+      parseNumber(cxt)
+      break
+    default: {
+      const t = schema.type as IntType
+      if (!self.opts.int32range && (t === "int32" || t === "uint32")) {
+        parseNumber(cxt, 16) // 2 ** 53 - max safe integer
+        if (t === "uint32") {
+          gen.if(_`${data} < 0`, () => parsingError(cxt, str`integer out of range`))
+        }
+      } else {
+        const [min, max, maxDigits] = intRange[t]
+        parseNumber(cxt, maxDigits)
+        gen.if(_`${data} < ${min} || ${data} > ${max}`, () =>
+          parsingError(cxt, str`integer out of range`)
+        )
+      }
+    }
+  }
+}
+
+function parseString(cxt: ParseCxt): void {
+  parseToken(cxt, '"')
+  parseWith(cxt, parseJsonString)
+}
+
+function parseEnum(cxt: ParseCxt): void {
+  const {gen, data, schema} = cxt
+  const enumSch = schema.enum
+  parseToken(cxt, '"')
+  // TODO loopEnum
+  gen.if(false)
+  for (const value of enumSch) {
+    const valueStr = JSON.stringify(value).slice(1) // remove starting quote
+    gen.elseIf(_`${jsonSlice(valueStr.length)} === ${valueStr}`)
+    gen.assign(data, str`${value}`)
+    gen.add(N.jsonPos, valueStr.length)
+  }
+  gen.else()
+  jsonSyntaxError(cxt)
+  gen.endIf()
+}
+
+function parseNumber(cxt: ParseCxt, maxDigits?: number): void {
+  const {gen} = cxt
+  skipWhitespace(cxt)
+  gen.if(
+    _`"-0123456789".indexOf(${jsonSlice(1)}) < 0`,
+    () => jsonSyntaxError(cxt),
+    () => parseWith(cxt, parseJsonNumber, maxDigits)
+  )
+}
+
+function parseBooleanToken(bool: boolean, fail: GenParse): GenParse {
+  return (cxt) => {
+    const {gen, data} = cxt
+    tryParseToken(
+      cxt,
+      `${bool}`,
+      () => fail(cxt),
+      () => gen.assign(data, bool)
+    )
+  }
+}
+
+function parseRef(cxt: ParseCxt): void {
+  const {gen, self, definitions, schema, schemaEnv} = cxt
+  const {ref} = schema
+  const refSchema = definitions[ref]
+  if (!refSchema) throw new MissingRefError(self.opts.uriResolver, "", ref, `No definition ${ref}`)
+  if (!hasRef(refSchema)) return parseCode({...cxt, schema: refSchema})
+  const {root} = schemaEnv
+  const sch = compileParser.call(self, new SchemaEnv({schema: refSchema, root}), definitions)
+  partialParse(cxt, getParser(gen, sch), true)
+}
+
+function getParser(gen: CodeGen, sch: SchemaEnv): Code {
+  return sch.parse
+    ? gen.scopeValue("parse", {ref: sch.parse})
+    : _`${gen.scopeValue("wrapper", {ref: sch})}.parse`
+}
+
+function parseEmpty(cxt: ParseCxt): void {
+  parseWith(cxt, parseJson)
+}
+
+function parseWith(cxt: ParseCxt, parseFunc: {code: string}, args?: SafeExpr): void {
+  partialParse(cxt, useFunc(cxt.gen, parseFunc), args)
+}
+
+function partialParse(cxt: ParseCxt, parseFunc: Name, args?: SafeExpr): void {
+  const {gen, data} = cxt
+  gen.assign(data, _`${parseFunc}(${N.json}, ${N.jsonPos}${args ? _`, ${args}` : nil})`)
+  gen.assign(N.jsonPos, _`${parseFunc}.position`)
+  gen.if(_`${data} === undefined`, () => parsingError(cxt, _`${parseFunc}.message`))
+}
+
+function parseToken(cxt: ParseCxt, tok: string): void {
+  tryParseToken(cxt, tok, jsonSyntaxError)
+}
+
+function tryParseToken(cxt: ParseCxt, tok: string, fail: GenParse, success?: GenParse): void {
+  const {gen} = cxt
+  const n = tok.length
+  skipWhitespace(cxt)
+  gen.if(
+    _`${jsonSlice(n)} === ${tok}`,
+    () => {
+      gen.add(N.jsonPos, n)
+      success?.(cxt)
+    },
+    () => fail(cxt)
+  )
+}
+
+function skipWhitespace({gen, char: c}: ParseCxt): void {
+  gen.code(
+    _`while((${c}=${N.json}[${N.jsonPos}],${c}===" "||${c}==="\\n"||${c}==="\\r"||${c}==="\\t"))${N.jsonPos}++;`
+  )
+}
+
+function jsonSlice(len: number | Name): Code {
+  return len === 1
+    ? _`${N.json}[${N.jsonPos}]`
+    : _`${N.json}.slice(${N.jsonPos}, ${N.jsonPos}+${len})`
+}
+
+function jsonSyntaxError(cxt: ParseCxt): void {
+  parsingError(cxt, _`"unexpected token " + ${N.json}[${N.jsonPos}]`)
+}
+
+function parsingError({gen, parseName}: ParseCxt, msg: Code): void {
+  gen.assign(_`${parseName}.message`, msg)
+  gen.assign(_`${parseName}.position`, N.jsonPos)
+  gen.return(undef)
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/compile/jtd/serialize.ts

@@ -0,0 +1,277 @@
+import type Ajv from "../../core"
+import type {SchemaObject} from "../../types"
+import {jtdForms, JTDForm, SchemaObjectMap} from "./types"
+import {SchemaEnv, getCompilingSchema} from ".."
+import {_, str, and, getProperty, CodeGen, Code, Name} from "../codegen"
+import MissingRefError from "../ref_error"
+import N from "../names"
+import {isOwnProperty} from "../../vocabularies/code"
+import {hasRef} from "../../vocabularies/jtd/ref"
+import {useFunc} from "../util"
+import quote from "../../runtime/quote"
+
+const genSerialize: {[F in JTDForm]: (cxt: SerializeCxt) => void} = {
+  elements: serializeElements,
+  values: serializeValues,
+  discriminator: serializeDiscriminator,
+  properties: serializeProperties,
+  optionalProperties: serializeProperties,
+  enum: serializeString,
+  type: serializeType,
+  ref: serializeRef,
+}
+
+interface SerializeCxt {
+  readonly gen: CodeGen
+  readonly self: Ajv // current Ajv instance
+  readonly schemaEnv: SchemaEnv
+  readonly definitions: SchemaObjectMap
+  schema: SchemaObject
+  data: Code
+}
+
+export default function compileSerializer(
+  this: Ajv,
+  sch: SchemaEnv,
+  definitions: SchemaObjectMap
+): SchemaEnv {
+  const _sch = getCompilingSchema.call(this, sch)
+  if (_sch) return _sch
+  const {es5, lines} = this.opts.code
+  const {ownProperties} = this.opts
+  const gen = new CodeGen(this.scope, {es5, lines, ownProperties})
+  const serializeName = gen.scopeName("serialize")
+  const cxt: SerializeCxt = {
+    self: this,
+    gen,
+    schema: sch.schema as SchemaObject,
+    schemaEnv: sch,
+    definitions,
+    data: N.data,
+  }
+
+  let sourceCode: string | undefined
+  try {
+    this._compilations.add(sch)
+    sch.serializeName = serializeName
+    gen.func(serializeName, N.data, false, () => {
+      gen.let(N.json, str``)
+      serializeCode(cxt)
+      gen.return(N.json)
+    })
+    gen.optimize(this.opts.code.optimize)
+    const serializeFuncCode = gen.toString()
+    sourceCode = `${gen.scopeRefs(N.scope)}return ${serializeFuncCode}`
+    const makeSerialize = new Function(`${N.scope}`, sourceCode)
+    const serialize: (data: unknown) => string = makeSerialize(this.scope.get())
+    this.scope.value(serializeName, {ref: serialize})
+    sch.serialize = serialize
+  } catch (e) {
+    if (sourceCode) this.logger.error("Error compiling serializer, function code:", sourceCode)
+    delete sch.serialize
+    delete sch.serializeName
+    throw e
+  } finally {
+    this._compilations.delete(sch)
+  }
+  return sch
+}
+
+function serializeCode(cxt: SerializeCxt): void {
+  let form: JTDForm | undefined
+  for (const key of jtdForms) {
+    if (key in cxt.schema) {
+      form = key
+      break
+    }
+  }
+  serializeNullable(cxt, form ? genSerialize[form] : serializeEmpty)
+}
+
+function serializeNullable(cxt: SerializeCxt, serializeForm: (_cxt: SerializeCxt) => void): void {
+  const {gen, schema, data} = cxt
+  if (!schema.nullable) return serializeForm(cxt)
+  gen.if(
+    _`${data} === undefined || ${data} === null`,
+    () => gen.add(N.json, _`"null"`),
+    () => serializeForm(cxt)
+  )
+}
+
+function serializeElements(cxt: SerializeCxt): void {
+  const {gen, schema, data} = cxt
+  gen.add(N.json, str`[`)
+  const first = gen.let("first", true)
+  gen.forOf("el", data, (el) => {
+    addComma(cxt, first)
+    serializeCode({...cxt, schema: schema.elements, data: el})
+  })
+  gen.add(N.json, str`]`)
+}
+
+function serializeValues(cxt: SerializeCxt): void {
+  const {gen, schema, data} = cxt
+  gen.add(N.json, str`{`)
+  const first = gen.let("first", true)
+  gen.forIn("key", data, (key) => serializeKeyValue(cxt, key, schema.values, first))
+  gen.add(N.json, str`}`)
+}
+
+function serializeKeyValue(cxt: SerializeCxt, key: Name, schema: SchemaObject, first?: Name): void {
+  const {gen, data} = cxt
+  addComma(cxt, first)
+  serializeString({...cxt, data: key})
+  gen.add(N.json, str`:`)
+  const value = gen.const("value", _`${data}${getProperty(key)}`)
+  serializeCode({...cxt, schema, data: value})
+}
+
+function serializeDiscriminator(cxt: SerializeCxt): void {
+  const {gen, schema, data} = cxt
+  const {discriminator} = schema
+  gen.add(N.json, str`{${JSON.stringify(discriminator)}:`)
+  const tag = gen.const("tag", _`${data}${getProperty(discriminator)}`)
+  serializeString({...cxt, data: tag})
+  gen.if(false)
+  for (const tagValue in schema.mapping) {
+    gen.elseIf(_`${tag} === ${tagValue}`)
+    const sch = schema.mapping[tagValue]
+    serializeSchemaProperties({...cxt, schema: sch}, discriminator)
+  }
+  gen.endIf()
+  gen.add(N.json, str`}`)
+}
+
+function serializeProperties(cxt: SerializeCxt): void {
+  const {gen} = cxt
+  gen.add(N.json, str`{`)
+  serializeSchemaProperties(cxt)
+  gen.add(N.json, str`}`)
+}
+
+function serializeSchemaProperties(cxt: SerializeCxt, discriminator?: string): void {
+  const {gen, schema, data} = cxt
+  const {properties, optionalProperties} = schema
+  const props = keys(properties)
+  const optProps = keys(optionalProperties)
+  const allProps = allProperties(props.concat(optProps))
+  let first = !discriminator
+  let firstProp: Name | undefined
+
+  for (const key of props) {
+    if (first) first = false
+    else gen.add(N.json, str`,`)
+    serializeProperty(key, properties[key], keyValue(key))
+  }
+  if (first) firstProp = gen.let("first", true)
+  for (const key of optProps) {
+    const value = keyValue(key)
+    gen.if(and(_`${value} !== undefined`, isOwnProperty(gen, data, key)), () => {
+      addComma(cxt, firstProp)
+      serializeProperty(key, optionalProperties[key], value)
+    })
+  }
+  if (schema.additionalProperties) {
+    gen.forIn("key", data, (key) =>
+      gen.if(isAdditional(key, allProps), () => serializeKeyValue(cxt, key, {}, firstProp))
+    )
+  }
+
+  function keys(ps?: SchemaObjectMap): string[] {
+    return ps ? Object.keys(ps) : []
+  }
+
+  function allProperties(ps: string[]): string[] {
+    if (discriminator) ps.push(discriminator)
+    if (new Set(ps).size !== ps.length) {
+      throw new Error("JTD: properties/optionalProperties/disciminator overlap")
+    }
+    return ps
+  }
+
+  function keyValue(key: string): Name {
+    return gen.const("value", _`${data}${getProperty(key)}`)
+  }
+
+  function serializeProperty(key: string, propSchema: SchemaObject, value: Name): void {
+    gen.add(N.json, str`${JSON.stringify(key)}:`)
+    serializeCode({...cxt, schema: propSchema, data: value})
+  }
+
+  function isAdditional(key: Name, ps: string[]): Code | true {
+    return ps.length ? and(...ps.map((p) => _`${key} !== ${p}`)) : true
+  }
+}
+
+function serializeType(cxt: SerializeCxt): void {
+  const {gen, schema, data} = cxt
+  switch (schema.type) {
+    case "boolean":
+      gen.add(N.json, _`${data} ? "true" : "false"`)
+      break
+    case "string":
+      serializeString(cxt)
+      break
+    case "timestamp":
+      gen.if(
+        _`${data} instanceof Date`,
+        () => gen.add(N.json, _`'"' + ${data}.toISOString() + '"'`),
+        () => serializeString(cxt)
+      )
+      break
+    default:
+      serializeNumber(cxt)
+  }
+}
+
+function serializeString({gen, data}: SerializeCxt): void {
+  gen.add(N.json, _`${useFunc(gen, quote)}(${data})`)
+}
+
+function serializeNumber({gen, data, self}: SerializeCxt): void {
+  const condition = _`${data} === Infinity || ${data} === -Infinity || ${data} !== ${data}`
+
+  if (self.opts.specialNumbers === undefined || self.opts.specialNumbers === "fast") {
+    gen.add(N.json, _`"" + ${data}`)
+  } else {
+    // specialNumbers === "null"
+    gen.if(
+      condition,
+      () => gen.add(N.json, _`null`),
+      () => gen.add(N.json, _`"" + ${data}`)
+    )
+  }
+}
+
+function serializeRef(cxt: SerializeCxt): void {
+  const {gen, self, data, definitions, schema, schemaEnv} = cxt
+  const {ref} = schema
+  const refSchema = definitions[ref]
+  if (!refSchema) throw new MissingRefError(self.opts.uriResolver, "", ref, `No definition ${ref}`)
+  if (!hasRef(refSchema)) return serializeCode({...cxt, schema: refSchema})
+  const {root} = schemaEnv
+  const sch = compileSerializer.call(self, new SchemaEnv({schema: refSchema, root}), definitions)
+  gen.add(N.json, _`${getSerialize(gen, sch)}(${data})`)
+}
+
+function getSerialize(gen: CodeGen, sch: SchemaEnv): Code {
+  return sch.serialize
+    ? gen.scopeValue("serialize", {ref: sch.serialize})
+    : _`${gen.scopeValue("wrapper", {ref: sch})}.serialize`
+}
+
+function serializeEmpty({gen, data}: SerializeCxt): void {
+  gen.add(N.json, _`JSON.stringify(${data})`)
+}
+
+function addComma({gen}: SerializeCxt, first?: Name): void {
+  if (first) {
+    gen.if(
+      first,
+      () => gen.assign(first, false),
+      () => gen.add(N.json, str`,`)
+    )
+  } else {
+    gen.add(N.json, str`,`)
+  }
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/compile/jtd/types.ts

@@ -0,0 +1,16 @@
+import type {SchemaObject} from "../../types"
+
+export type SchemaObjectMap = {[Ref in string]?: SchemaObject}
+
+export const jtdForms = [
+  "elements",
+  "values",
+  "discriminator",
+  "properties",
+  "optionalProperties",
+  "enum",
+  "type",
+  "ref",
+] as const
+
+export type JTDForm = (typeof jtdForms)[number]

frontend/node_modules/schema-utils/node_modules/ajv/lib/compile/names.ts

@@ -0,0 +1,27 @@
+import {Name} from "./codegen"
+
+const names = {
+  // validation function arguments
+  data: new Name("data"), // data passed to validation function
+  // args passed from referencing schema
+  valCxt: new Name("valCxt"), // validation/data context - should not be used directly, it is destructured to the names below
+  instancePath: new Name("instancePath"),
+  parentData: new Name("parentData"),
+  parentDataProperty: new Name("parentDataProperty"),
+  rootData: new Name("rootData"), // root data - same as the data passed to the first/top validation function
+  dynamicAnchors: new Name("dynamicAnchors"), // used to support recursiveRef and dynamicRef
+  // function scoped variables
+  vErrors: new Name("vErrors"), // null or array of validation errors
+  errors: new Name("errors"), // counter of validation errors
+  this: new Name("this"),
+  // "globals"
+  self: new Name("self"),
+  scope: new Name("scope"),
+  // JTD serialize/parse name for JSON string and position
+  json: new Name("json"),
+  jsonPos: new Name("jsonPos"),
+  jsonLen: new Name("jsonLen"),
+  jsonPart: new Name("jsonPart"),
+}
+
+export default names

frontend/node_modules/schema-utils/node_modules/ajv/lib/compile/ref_error.ts

@@ -0,0 +1,13 @@
+import {resolveUrl, normalizeId, getFullPath} from "./resolve"
+import type {UriResolver} from "../types"
+
+export default class MissingRefError extends Error {
+  readonly missingRef: string
+  readonly missingSchema: string
+
+  constructor(resolver: UriResolver, baseId: string, ref: string, msg?: string) {
+    super(msg || `can't resolve reference ${ref} from id ${baseId}`)
+    this.missingRef = resolveUrl(resolver, baseId, ref)
+    this.missingSchema = normalizeId(getFullPath(resolver, this.missingRef))
+  }
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/compile/resolve.ts

@@ -0,0 +1,149 @@
+import type {AnySchema, AnySchemaObject, UriResolver} from "../types"
+import type Ajv from "../ajv"
+import type {URIComponent} from "fast-uri"
+import {eachItem} from "./util"
+import * as equal from "fast-deep-equal"
+import * as traverse from "json-schema-traverse"
+
+// the hash of local references inside the schema (created by getSchemaRefs), used for inline resolution
+export type LocalRefs = {[Ref in string]?: AnySchemaObject}
+
+// TODO refactor to use keyword definitions
+const SIMPLE_INLINED = new Set([
+  "type",
+  "format",
+  "pattern",
+  "maxLength",
+  "minLength",
+  "maxProperties",
+  "minProperties",
+  "maxItems",
+  "minItems",
+  "maximum",
+  "minimum",
+  "uniqueItems",
+  "multipleOf",
+  "required",
+  "enum",
+  "const",
+])
+
+export function inlineRef(schema: AnySchema, limit: boolean | number = true): boolean {
+  if (typeof schema == "boolean") return true
+  if (limit === true) return !hasRef(schema)
+  if (!limit) return false
+  return countKeys(schema) <= limit
+}
+
+const REF_KEYWORDS = new Set([
+  "$ref",
+  "$recursiveRef",
+  "$recursiveAnchor",
+  "$dynamicRef",
+  "$dynamicAnchor",
+])
+
+function hasRef(schema: AnySchemaObject): boolean {
+  for (const key in schema) {
+    if (REF_KEYWORDS.has(key)) return true
+    const sch = schema[key]
+    if (Array.isArray(sch) && sch.some(hasRef)) return true
+    if (typeof sch == "object" && hasRef(sch)) return true
+  }
+  return false
+}
+
+function countKeys(schema: AnySchemaObject): number {
+  let count = 0
+  for (const key in schema) {
+    if (key === "$ref") return Infinity
+    count++
+    if (SIMPLE_INLINED.has(key)) continue
+    if (typeof schema[key] == "object") {
+      eachItem(schema[key], (sch) => (count += countKeys(sch)))
+    }
+    if (count === Infinity) return Infinity
+  }
+  return count
+}
+
+export function getFullPath(resolver: UriResolver, id = "", normalize?: boolean): string {
+  if (normalize !== false) id = normalizeId(id)
+  const p = resolver.parse(id)
+  return _getFullPath(resolver, p)
+}
+
+export function _getFullPath(resolver: UriResolver, p: URIComponent): string {
+  const serialized = resolver.serialize(p)
+  return serialized.split("#")[0] + "#"
+}
+
+const TRAILING_SLASH_HASH = /#\/?$/
+export function normalizeId(id: string | undefined): string {
+  return id ? id.replace(TRAILING_SLASH_HASH, "") : ""
+}
+
+export function resolveUrl(resolver: UriResolver, baseId: string, id: string): string {
+  id = normalizeId(id)
+  return resolver.resolve(baseId, id)
+}
+
+const ANCHOR = /^[a-z_][-a-z0-9._]*$/i
+
+export function getSchemaRefs(this: Ajv, schema: AnySchema, baseId: string): LocalRefs {
+  if (typeof schema == "boolean") return {}
+  const {schemaId, uriResolver} = this.opts
+  const schId = normalizeId(schema[schemaId] || baseId)
+  const baseIds: {[JsonPtr in string]?: string} = {"": schId}
+  const pathPrefix = getFullPath(uriResolver, schId, false)
+  const localRefs: LocalRefs = {}
+  const schemaRefs: Set<string> = new Set()
+
+  traverse(schema, {allKeys: true}, (sch, jsonPtr, _, parentJsonPtr) => {
+    if (parentJsonPtr === undefined) return
+    const fullPath = pathPrefix + jsonPtr
+    let innerBaseId = baseIds[parentJsonPtr]
+    if (typeof sch[schemaId] == "string") innerBaseId = addRef.call(this, sch[schemaId])
+    addAnchor.call(this, sch.$anchor)
+    addAnchor.call(this, sch.$dynamicAnchor)
+    baseIds[jsonPtr] = innerBaseId
+
+    function addRef(this: Ajv, ref: string): string {
+      // eslint-disable-next-line @typescript-eslint/unbound-method
+      const _resolve = this.opts.uriResolver.resolve
+      ref = normalizeId(innerBaseId ? _resolve(innerBaseId, ref) : ref)
+      if (schemaRefs.has(ref)) throw ambiguos(ref)
+      schemaRefs.add(ref)
+      let schOrRef = this.refs[ref]
+      if (typeof schOrRef == "string") schOrRef = this.refs[schOrRef]
+      if (typeof schOrRef == "object") {
+        checkAmbiguosRef(sch, schOrRef.schema, ref)
+      } else if (ref !== normalizeId(fullPath)) {
+        if (ref[0] === "#") {
+          checkAmbiguosRef(sch, localRefs[ref], ref)
+          localRefs[ref] = sch
+        } else {
+          this.refs[ref] = fullPath
+        }
+      }
+      return ref
+    }
+
+    function addAnchor(this: Ajv, anchor: unknown): void {
+      if (typeof anchor == "string") {
+        if (!ANCHOR.test(anchor)) throw new Error(`invalid anchor "${anchor}"`)
+        addRef.call(this, `#${anchor}`)
+      }
+    }
+  })
+
+  return localRefs
+
+  function checkAmbiguosRef(sch1: AnySchema, sch2: AnySchema | undefined, ref: string): void {
+    if (sch2 !== undefined && !equal(sch1, sch2)) throw ambiguos(ref)
+  }
+
+  function ambiguos(ref: string): Error {
+    return new Error(`reference "${ref}" resolves to more than one schema`)
+  }
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/compile/rules.ts

@@ -0,0 +1,50 @@
+import type {AddedKeywordDefinition} from "../types"
+
+const _jsonTypes = ["string", "number", "integer", "boolean", "null", "object", "array"] as const
+
+export type JSONType = (typeof _jsonTypes)[number]
+
+const jsonTypes: Set<string> = new Set(_jsonTypes)
+
+export function isJSONType(x: unknown): x is JSONType {
+  return typeof x == "string" && jsonTypes.has(x)
+}
+
+type ValidationTypes = {
+  [K in JSONType]: boolean | RuleGroup | undefined
+}
+
+export interface ValidationRules {
+  rules: RuleGroup[]
+  post: RuleGroup
+  all: {[Key in string]?: boolean | Rule} // rules that have to be validated
+  keywords: {[Key in string]?: boolean} // all known keywords (superset of "all")
+  types: ValidationTypes
+}
+
+export interface RuleGroup {
+  type?: JSONType
+  rules: Rule[]
+}
+
+// This interface wraps KeywordDefinition because definition can have multiple keywords
+export interface Rule {
+  keyword: string
+  definition: AddedKeywordDefinition
+}
+
+export function getRules(): ValidationRules {
+  const groups: Record<"number" | "string" | "array" | "object", RuleGroup> = {
+    number: {type: "number", rules: []},
+    string: {type: "string", rules: []},
+    array: {type: "array", rules: []},
+    object: {type: "object", rules: []},
+  }
+  return {
+    types: {...groups, integer: true, boolean: true, null: true},
+    rules: [{rules: []}, groups.number, groups.string, groups.array, groups.object],
+    post: {rules: []},
+    all: {},
+    keywords: {},
+  }
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/compile/util.ts

@@ -0,0 +1,213 @@
+import type {AnySchema, EvaluatedProperties, EvaluatedItems} from "../types"
+import type {SchemaCxt, SchemaObjCxt} from "."
+import {_, getProperty, Code, Name, CodeGen} from "./codegen"
+import {_Code} from "./codegen/code"
+import type {Rule, ValidationRules} from "./rules"
+
+// TODO refactor to use Set
+export function toHash<T extends string = string>(arr: T[]): {[K in T]?: true} {
+  const hash: {[K in T]?: true} = {}
+  for (const item of arr) hash[item] = true
+  return hash
+}
+
+export function alwaysValidSchema(it: SchemaCxt, schema: AnySchema): boolean | void {
+  if (typeof schema == "boolean") return schema
+  if (Object.keys(schema).length === 0) return true
+  checkUnknownRules(it, schema)
+  return !schemaHasRules(schema, it.self.RULES.all)
+}
+
+export function checkUnknownRules(it: SchemaCxt, schema: AnySchema = it.schema): void {
+  const {opts, self} = it
+  if (!opts.strictSchema) return
+  if (typeof schema === "boolean") return
+  const rules = self.RULES.keywords
+  for (const key in schema) {
+    if (!rules[key]) checkStrictMode(it, `unknown keyword: "${key}"`)
+  }
+}
+
+export function schemaHasRules(
+  schema: AnySchema,
+  rules: {[Key in string]?: boolean | Rule}
+): boolean {
+  if (typeof schema == "boolean") return !schema
+  for (const key in schema) if (rules[key]) return true
+  return false
+}
+
+export function schemaHasRulesButRef(schema: AnySchema, RULES: ValidationRules): boolean {
+  if (typeof schema == "boolean") return !schema
+  for (const key in schema) if (key !== "$ref" && RULES.all[key]) return true
+  return false
+}
+
+export function schemaRefOrVal(
+  {topSchemaRef, schemaPath}: SchemaObjCxt,
+  schema: unknown,
+  keyword: string,
+  $data?: string | false
+): Code | number | boolean {
+  if (!$data) {
+    if (typeof schema == "number" || typeof schema == "boolean") return schema
+    if (typeof schema == "string") return _`${schema}`
+  }
+  return _`${topSchemaRef}${schemaPath}${getProperty(keyword)}`
+}
+
+export function unescapeFragment(str: string): string {
+  return unescapeJsonPointer(decodeURIComponent(str))
+}
+
+export function escapeFragment(str: string | number): string {
+  return encodeURIComponent(escapeJsonPointer(str))
+}
+
+export function escapeJsonPointer(str: string | number): string {
+  if (typeof str == "number") return `${str}`
+  return str.replace(/~/g, "~0").replace(/\//g, "~1")
+}
+
+export function unescapeJsonPointer(str: string): string {
+  return str.replace(/~1/g, "/").replace(/~0/g, "~")
+}
+
+export function eachItem<T>(xs: T | T[], f: (x: T) => void): void {
+  if (Array.isArray(xs)) {
+    for (const x of xs) f(x)
+  } else {
+    f(xs)
+  }
+}
+
+type SomeEvaluated = EvaluatedProperties | EvaluatedItems
+
+type MergeEvaluatedFunc<T extends SomeEvaluated> = (
+  gen: CodeGen,
+  from: Name | T,
+  to: Name | Exclude<T, true> | undefined,
+  toName?: typeof Name
+) => Name | T
+
+interface MakeMergeFuncArgs<T extends SomeEvaluated> {
+  mergeNames: (gen: CodeGen, from: Name, to: Name) => void
+  mergeToName: (gen: CodeGen, from: T, to: Name) => void
+  mergeValues: (from: T, to: Exclude<T, true>) => T
+  resultToName: (gen: CodeGen, res?: T) => Name
+}
+
+function makeMergeEvaluated<T extends SomeEvaluated>({
+  mergeNames,
+  mergeToName,
+  mergeValues,
+  resultToName,
+}: MakeMergeFuncArgs<T>): MergeEvaluatedFunc<T> {
+  return (gen, from, to, toName) => {
+    const res =
+      to === undefined
+        ? from
+        : to instanceof Name
+        ? (from instanceof Name ? mergeNames(gen, from, to) : mergeToName(gen, from, to), to)
+        : from instanceof Name
+        ? (mergeToName(gen, to, from), from)
+        : mergeValues(from, to)
+    return toName === Name && !(res instanceof Name) ? resultToName(gen, res) : res
+  }
+}
+
+interface MergeEvaluated {
+  props: MergeEvaluatedFunc<EvaluatedProperties>
+  items: MergeEvaluatedFunc<EvaluatedItems>
+}
+
+export const mergeEvaluated: MergeEvaluated = {
+  props: makeMergeEvaluated({
+    mergeNames: (gen, from, to) =>
+      gen.if(_`${to} !== true && ${from} !== undefined`, () => {
+        gen.if(
+          _`${from} === true`,
+          () => gen.assign(to, true),
+          () => gen.assign(to, _`${to} || {}`).code(_`Object.assign(${to}, ${from})`)
+        )
+      }),
+    mergeToName: (gen, from, to) =>
+      gen.if(_`${to} !== true`, () => {
+        if (from === true) {
+          gen.assign(to, true)
+        } else {
+          gen.assign(to, _`${to} || {}`)
+          setEvaluated(gen, to, from)
+        }
+      }),
+    mergeValues: (from, to) => (from === true ? true : {...from, ...to}),
+    resultToName: evaluatedPropsToName,
+  }),
+  items: makeMergeEvaluated({
+    mergeNames: (gen, from, to) =>
+      gen.if(_`${to} !== true && ${from} !== undefined`, () =>
+        gen.assign(to, _`${from} === true ? true : ${to} > ${from} ? ${to} : ${from}`)
+      ),
+    mergeToName: (gen, from, to) =>
+      gen.if(_`${to} !== true`, () =>
+        gen.assign(to, from === true ? true : _`${to} > ${from} ? ${to} : ${from}`)
+      ),
+    mergeValues: (from, to) => (from === true ? true : Math.max(from, to)),
+    resultToName: (gen, items) => gen.var("items", items),
+  }),
+}
+
+export function evaluatedPropsToName(gen: CodeGen, ps?: EvaluatedProperties): Name {
+  if (ps === true) return gen.var("props", true)
+  const props = gen.var("props", _`{}`)
+  if (ps !== undefined) setEvaluated(gen, props, ps)
+  return props
+}
+
+export function setEvaluated(gen: CodeGen, props: Name, ps: {[K in string]?: true}): void {
+  Object.keys(ps).forEach((p) => gen.assign(_`${props}${getProperty(p)}`, true))
+}
+
+const snippets: {[S in string]?: _Code} = {}
+
+export function useFunc(gen: CodeGen, f: {code: string}): Name {
+  return gen.scopeValue("func", {
+    ref: f,
+    code: snippets[f.code] || (snippets[f.code] = new _Code(f.code)),
+  })
+}
+
+export enum Type {
+  Num,
+  Str,
+}
+
+export function getErrorPath(
+  dataProp: Name | string | number,
+  dataPropType?: Type,
+  jsPropertySyntax?: boolean
+): Code | string {
+  // let path
+  if (dataProp instanceof Name) {
+    const isNumber = dataPropType === Type.Num
+    return jsPropertySyntax
+      ? isNumber
+        ? _`"[" + ${dataProp} + "]"`
+        : _`"['" + ${dataProp} + "']"`
+      : isNumber
+      ? _`"/" + ${dataProp}`
+      : _`"/" + ${dataProp}.replace(/~/g, "~0").replace(/\\//g, "~1")` // TODO maybe use global escapePointer
+  }
+  return jsPropertySyntax ? getProperty(dataProp).toString() : "/" + escapeJsonPointer(dataProp)
+}
+
+export function checkStrictMode(
+  it: SchemaCxt,
+  msg: string,
+  mode: boolean | "log" = it.opts.strictSchema
+): void {
+  if (!mode) return
+  msg = `strict mode: ${msg}`
+  if (mode === true) throw new Error(msg)
+  it.self.logger.warn(msg)
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/compile/validate/applicability.ts

@@ -0,0 +1,22 @@
+import type {AnySchemaObject} from "../../types"
+import type {SchemaObjCxt} from ".."
+import type {JSONType, RuleGroup, Rule} from "../rules"
+
+export function schemaHasRulesForType(
+  {schema, self}: SchemaObjCxt,
+  type: JSONType
+): boolean | undefined {
+  const group = self.RULES.types[type]
+  return group && group !== true && shouldUseGroup(schema, group)
+}
+
+export function shouldUseGroup(schema: AnySchemaObject, group: RuleGroup): boolean {
+  return group.rules.some((rule) => shouldUseRule(schema, rule))
+}
+
+export function shouldUseRule(schema: AnySchemaObject, rule: Rule): boolean | undefined {
+  return (
+    schema[rule.keyword] !== undefined ||
+    rule.definition.implements?.some((kwd) => schema[kwd] !== undefined)
+  )
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/compile/validate/boolSchema.ts

@@ -0,0 +1,47 @@
+import type {KeywordErrorDefinition, KeywordErrorCxt} from "../../types"
+import type {SchemaCxt} from ".."
+import {reportError} from "../errors"
+import {_, Name} from "../codegen"
+import N from "../names"
+
+const boolError: KeywordErrorDefinition = {
+  message: "boolean schema is false",
+}
+
+export function topBoolOrEmptySchema(it: SchemaCxt): void {
+  const {gen, schema, validateName} = it
+  if (schema === false) {
+    falseSchemaError(it, false)
+  } else if (typeof schema == "object" && schema.$async === true) {
+    gen.return(N.data)
+  } else {
+    gen.assign(_`${validateName}.errors`, null)
+    gen.return(true)
+  }
+}
+
+export function boolOrEmptySchema(it: SchemaCxt, valid: Name): void {
+  const {gen, schema} = it
+  if (schema === false) {
+    gen.var(valid, false) // TODO var
+    falseSchemaError(it)
+  } else {
+    gen.var(valid, true) // TODO var
+  }
+}
+
+function falseSchemaError(it: SchemaCxt, overrideAllErrors?: boolean): void {
+  const {gen, data} = it
+  // TODO maybe some other interface should be used for non-keyword validation errors...
+  const cxt: KeywordErrorCxt = {
+    gen,
+    keyword: "false schema",
+    data,
+    schema: false,
+    schemaCode: false,
+    schemaValue: false,
+    params: {},
+    it,
+  }
+  reportError(cxt, boolError, undefined, overrideAllErrors)
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/compile/validate/dataType.ts

@@ -0,0 +1,230 @@
+import type {
+  KeywordErrorDefinition,
+  KeywordErrorCxt,
+  ErrorObject,
+  AnySchemaObject,
+} from "../../types"
+import type {SchemaObjCxt} from ".."
+import {isJSONType, JSONType} from "../rules"
+import {schemaHasRulesForType} from "./applicability"
+import {reportError} from "../errors"
+import {_, nil, and, not, operators, Code, Name} from "../codegen"
+import {toHash, schemaRefOrVal} from "../util"
+
+export enum DataType {
+  Correct,
+  Wrong,
+}
+
+export function getSchemaTypes(schema: AnySchemaObject): JSONType[] {
+  const types = getJSONTypes(schema.type)
+  const hasNull = types.includes("null")
+  if (hasNull) {
+    if (schema.nullable === false) throw new Error("type: null contradicts nullable: false")
+  } else {
+    if (!types.length && schema.nullable !== undefined) {
+      throw new Error('"nullable" cannot be used without "type"')
+    }
+    if (schema.nullable === true) types.push("null")
+  }
+  return types
+}
+
+// eslint-disable-next-line @typescript-eslint/no-redundant-type-constituents
+export function getJSONTypes(ts: unknown | unknown[]): JSONType[] {
+  const types: unknown[] = Array.isArray(ts) ? ts : ts ? [ts] : []
+  if (types.every(isJSONType)) return types
+  throw new Error("type must be JSONType or JSONType[]: " + types.join(","))
+}
+
+export function coerceAndCheckDataType(it: SchemaObjCxt, types: JSONType[]): boolean {
+  const {gen, data, opts} = it
+  const coerceTo = coerceToTypes(types, opts.coerceTypes)
+  const checkTypes =
+    types.length > 0 &&
+    !(coerceTo.length === 0 && types.length === 1 && schemaHasRulesForType(it, types[0]))
+  if (checkTypes) {
+    const wrongType = checkDataTypes(types, data, opts.strictNumbers, DataType.Wrong)
+    gen.if(wrongType, () => {
+      if (coerceTo.length) coerceData(it, types, coerceTo)
+      else reportTypeError(it)
+    })
+  }
+  return checkTypes
+}
+
+const COERCIBLE: Set<JSONType> = new Set(["string", "number", "integer", "boolean", "null"])
+function coerceToTypes(types: JSONType[], coerceTypes?: boolean | "array"): JSONType[] {
+  return coerceTypes
+    ? types.filter((t) => COERCIBLE.has(t) || (coerceTypes === "array" && t === "array"))
+    : []
+}
+
+function coerceData(it: SchemaObjCxt, types: JSONType[], coerceTo: JSONType[]): void {
+  const {gen, data, opts} = it
+  const dataType = gen.let("dataType", _`typeof ${data}`)
+  const coerced = gen.let("coerced", _`undefined`)
+  if (opts.coerceTypes === "array") {
+    gen.if(_`${dataType} == 'object' && Array.isArray(${data}) && ${data}.length == 1`, () =>
+      gen
+        .assign(data, _`${data}[0]`)
+        .assign(dataType, _`typeof ${data}`)
+        .if(checkDataTypes(types, data, opts.strictNumbers), () => gen.assign(coerced, data))
+    )
+  }
+  gen.if(_`${coerced} !== undefined`)
+  for (const t of coerceTo) {
+    if (COERCIBLE.has(t) || (t === "array" && opts.coerceTypes === "array")) {
+      coerceSpecificType(t)
+    }
+  }
+  gen.else()
+  reportTypeError(it)
+  gen.endIf()
+
+  gen.if(_`${coerced} !== undefined`, () => {
+    gen.assign(data, coerced)
+    assignParentData(it, coerced)
+  })
+
+  function coerceSpecificType(t: string): void {
+    switch (t) {
+      case "string":
+        gen
+          .elseIf(_`${dataType} == "number" || ${dataType} == "boolean"`)
+          .assign(coerced, _`"" + ${data}`)
+          .elseIf(_`${data} === null`)
+          .assign(coerced, _`""`)
+        return
+      case "number":
+        gen
+          .elseIf(
+            _`${dataType} == "boolean" || ${data} === null
+              || (${dataType} == "string" && ${data} && ${data} == +${data})`
+          )
+          .assign(coerced, _`+${data}`)
+        return
+      case "integer":
+        gen
+          .elseIf(
+            _`${dataType} === "boolean" || ${data} === null
+              || (${dataType} === "string" && ${data} && ${data} == +${data} && !(${data} % 1))`
+          )
+          .assign(coerced, _`+${data}`)
+        return
+      case "boolean":
+        gen
+          .elseIf(_`${data} === "false" || ${data} === 0 || ${data} === null`)
+          .assign(coerced, false)
+          .elseIf(_`${data} === "true" || ${data} === 1`)
+          .assign(coerced, true)
+        return
+      case "null":
+        gen.elseIf(_`${data} === "" || ${data} === 0 || ${data} === false`)
+        gen.assign(coerced, null)
+        return
+
+      case "array":
+        gen
+          .elseIf(
+            _`${dataType} === "string" || ${dataType} === "number"
+              || ${dataType} === "boolean" || ${data} === null`
+          )
+          .assign(coerced, _`[${data}]`)
+    }
+  }
+}
+
+function assignParentData({gen, parentData, parentDataProperty}: SchemaObjCxt, expr: Name): void {
+  // TODO use gen.property
+  gen.if(_`${parentData} !== undefined`, () =>
+    gen.assign(_`${parentData}[${parentDataProperty}]`, expr)
+  )
+}
+
+export function checkDataType(
+  dataType: JSONType,
+  data: Name,
+  strictNums?: boolean | "log",
+  correct = DataType.Correct
+): Code {
+  const EQ = correct === DataType.Correct ? operators.EQ : operators.NEQ
+  let cond: Code
+  switch (dataType) {
+    case "null":
+      return _`${data} ${EQ} null`
+    case "array":
+      cond = _`Array.isArray(${data})`
+      break
+    case "object":
+      cond = _`${data} && typeof ${data} == "object" && !Array.isArray(${data})`
+      break
+    case "integer":
+      cond = numCond(_`!(${data} % 1) && !isNaN(${data})`)
+      break
+    case "number":
+      cond = numCond()
+      break
+    default:
+      return _`typeof ${data} ${EQ} ${dataType}`
+  }
+  return correct === DataType.Correct ? cond : not(cond)
+
+  function numCond(_cond: Code = nil): Code {
+    return and(_`typeof ${data} == "number"`, _cond, strictNums ? _`isFinite(${data})` : nil)
+  }
+}
+
+export function checkDataTypes(
+  dataTypes: JSONType[],
+  data: Name,
+  strictNums?: boolean | "log",
+  correct?: DataType
+): Code {
+  if (dataTypes.length === 1) {
+    return checkDataType(dataTypes[0], data, strictNums, correct)
+  }
+  let cond: Code
+  const types = toHash(dataTypes)
+  if (types.array && types.object) {
+    const notObj = _`typeof ${data} != "object"`
+    cond = types.null ? notObj : _`!${data} || ${notObj}`
+    delete types.null
+    delete types.array
+    delete types.object
+  } else {
+    cond = nil
+  }
+  if (types.number) delete types.integer
+  for (const t in types) cond = and(cond, checkDataType(t as JSONType, data, strictNums, correct))
+  return cond
+}
+
+export type TypeError = ErrorObject<"type", {type: string}>
+
+const typeError: KeywordErrorDefinition = {
+  message: ({schema}) => `must be ${schema}`,
+  params: ({schema, schemaValue}) =>
+    typeof schema == "string" ? _`{type: ${schema}}` : _`{type: ${schemaValue}}`,
+}
+
+export function reportTypeError(it: SchemaObjCxt): void {
+  const cxt = getTypeErrorContext(it)
+  reportError(cxt, typeError)
+}
+
+function getTypeErrorContext(it: SchemaObjCxt): KeywordErrorCxt {
+  const {gen, data, schema} = it
+  const schemaCode = schemaRefOrVal(it, schema, "type")
+  return {
+    gen,
+    keyword: "type",
+    data,
+    schema: schema.type,
+    schemaCode,
+    schemaValue: schemaCode,
+    parentSchema: schema,
+    params: {},
+    it,
+  }
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/compile/validate/defaults.ts

@@ -0,0 +1,32 @@
+import type {SchemaObjCxt} from ".."
+import {_, getProperty, stringify} from "../codegen"
+import {checkStrictMode} from "../util"
+
+export function assignDefaults(it: SchemaObjCxt, ty?: string): void {
+  const {properties, items} = it.schema
+  if (ty === "object" && properties) {
+    for (const key in properties) {
+      assignDefault(it, key, properties[key].default)
+    }
+  } else if (ty === "array" && Array.isArray(items)) {
+    items.forEach((sch, i: number) => assignDefault(it, i, sch.default))
+  }
+}
+
+function assignDefault(it: SchemaObjCxt, prop: string | number, defaultValue: unknown): void {
+  const {gen, compositeRule, data, opts} = it
+  if (defaultValue === undefined) return
+  const childData = _`${data}${getProperty(prop)}`
+  if (compositeRule) {
+    checkStrictMode(it, `default is ignored for: ${childData}`)
+    return
+  }
+
+  let condition = _`${childData} === undefined`
+  if (opts.useDefaults === "empty") {
+    condition = _`${condition} || ${childData} === null || ${childData} === ""`
+  }
+  // `${childData} === undefined` +
+  // (opts.useDefaults === "empty" ? ` || ${childData} === null || ${childData} === ""` : "")
+  gen.if(condition, _`${childData} = ${stringify(defaultValue)}`)
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/compile/validate/index.ts

@@ -0,0 +1,582 @@
+import type {
+  AddedKeywordDefinition,
+  AnySchema,
+  AnySchemaObject,
+  KeywordErrorCxt,
+  KeywordCxtParams,
+} from "../../types"
+import type {SchemaCxt, SchemaObjCxt} from ".."
+import type {InstanceOptions} from "../../core"
+import {boolOrEmptySchema, topBoolOrEmptySchema} from "./boolSchema"
+import {coerceAndCheckDataType, getSchemaTypes} from "./dataType"
+import {shouldUseGroup, shouldUseRule} from "./applicability"
+import {checkDataType, checkDataTypes, reportTypeError, DataType} from "./dataType"
+import {assignDefaults} from "./defaults"
+import {funcKeywordCode, macroKeywordCode, validateKeywordUsage, validSchemaType} from "./keyword"
+import {getSubschema, extendSubschemaData, SubschemaArgs, extendSubschemaMode} from "./subschema"
+import {_, nil, str, or, not, getProperty, Block, Code, Name, CodeGen} from "../codegen"
+import N from "../names"
+import {resolveUrl} from "../resolve"
+import {
+  schemaRefOrVal,
+  schemaHasRulesButRef,
+  checkUnknownRules,
+  checkStrictMode,
+  unescapeJsonPointer,
+  mergeEvaluated,
+} from "../util"
+import type {JSONType, Rule, RuleGroup} from "../rules"
+import {
+  ErrorPaths,
+  reportError,
+  reportExtraError,
+  resetErrorsCount,
+  keyword$DataError,
+} from "../errors"
+
+// schema compilation - generates validation function, subschemaCode (below) is used for subschemas
+export function validateFunctionCode(it: SchemaCxt): void {
+  if (isSchemaObj(it)) {
+    checkKeywords(it)
+    if (schemaCxtHasRules(it)) {
+      topSchemaObjCode(it)
+      return
+    }
+  }
+  validateFunction(it, () => topBoolOrEmptySchema(it))
+}
+
+function validateFunction(
+  {gen, validateName, schema, schemaEnv, opts}: SchemaCxt,
+  body: Block
+): void {
+  if (opts.code.es5) {
+    gen.func(validateName, _`${N.data}, ${N.valCxt}`, schemaEnv.$async, () => {
+      gen.code(_`"use strict"; ${funcSourceUrl(schema, opts)}`)
+      destructureValCxtES5(gen, opts)
+      gen.code(body)
+    })
+  } else {
+    gen.func(validateName, _`${N.data}, ${destructureValCxt(opts)}`, schemaEnv.$async, () =>
+      gen.code(funcSourceUrl(schema, opts)).code(body)
+    )
+  }
+}
+
+function destructureValCxt(opts: InstanceOptions): Code {
+  return _`{${N.instancePath}="", ${N.parentData}, ${N.parentDataProperty}, ${N.rootData}=${
+    N.data
+  }${opts.dynamicRef ? _`, ${N.dynamicAnchors}={}` : nil}}={}`
+}
+
+function destructureValCxtES5(gen: CodeGen, opts: InstanceOptions): void {
+  gen.if(
+    N.valCxt,
+    () => {
+      gen.var(N.instancePath, _`${N.valCxt}.${N.instancePath}`)
+      gen.var(N.parentData, _`${N.valCxt}.${N.parentData}`)
+      gen.var(N.parentDataProperty, _`${N.valCxt}.${N.parentDataProperty}`)
+      gen.var(N.rootData, _`${N.valCxt}.${N.rootData}`)
+      if (opts.dynamicRef) gen.var(N.dynamicAnchors, _`${N.valCxt}.${N.dynamicAnchors}`)
+    },
+    () => {
+      gen.var(N.instancePath, _`""`)
+      gen.var(N.parentData, _`undefined`)
+      gen.var(N.parentDataProperty, _`undefined`)
+      gen.var(N.rootData, N.data)
+      if (opts.dynamicRef) gen.var(N.dynamicAnchors, _`{}`)
+    }
+  )
+}
+
+function topSchemaObjCode(it: SchemaObjCxt): void {
+  const {schema, opts, gen} = it
+  validateFunction(it, () => {
+    if (opts.$comment && schema.$comment) commentKeyword(it)
+    checkNoDefault(it)
+    gen.let(N.vErrors, null)
+    gen.let(N.errors, 0)
+    if (opts.unevaluated) resetEvaluated(it)
+    typeAndKeywords(it)
+    returnResults(it)
+  })
+  return
+}
+
+function resetEvaluated(it: SchemaObjCxt): void {
+  // TODO maybe some hook to execute it in the end to check whether props/items are Name, as in assignEvaluated
+  const {gen, validateName} = it
+  it.evaluated = gen.const("evaluated", _`${validateName}.evaluated`)
+  gen.if(_`${it.evaluated}.dynamicProps`, () => gen.assign(_`${it.evaluated}.props`, _`undefined`))
+  gen.if(_`${it.evaluated}.dynamicItems`, () => gen.assign(_`${it.evaluated}.items`, _`undefined`))
+}
+
+function funcSourceUrl(schema: AnySchema, opts: InstanceOptions): Code {
+  const schId = typeof schema == "object" && schema[opts.schemaId]
+  return schId && (opts.code.source || opts.code.process) ? _`/*# sourceURL=${schId} */` : nil
+}
+
+// schema compilation - this function is used recursively to generate code for sub-schemas
+function subschemaCode(it: SchemaCxt, valid: Name): void {
+  if (isSchemaObj(it)) {
+    checkKeywords(it)
+    if (schemaCxtHasRules(it)) {
+      subSchemaObjCode(it, valid)
+      return
+    }
+  }
+  boolOrEmptySchema(it, valid)
+}
+
+function schemaCxtHasRules({schema, self}: SchemaCxt): boolean {
+  if (typeof schema == "boolean") return !schema
+  for (const key in schema) if (self.RULES.all[key]) return true
+  return false
+}
+
+function isSchemaObj(it: SchemaCxt): it is SchemaObjCxt {
+  return typeof it.schema != "boolean"
+}
+
+function subSchemaObjCode(it: SchemaObjCxt, valid: Name): void {
+  const {schema, gen, opts} = it
+  if (opts.$comment && schema.$comment) commentKeyword(it)
+  updateContext(it)
+  checkAsyncSchema(it)
+  const errsCount = gen.const("_errs", N.errors)
+  typeAndKeywords(it, errsCount)
+  // TODO var
+  gen.var(valid, _`${errsCount} === ${N.errors}`)
+}
+
+function checkKeywords(it: SchemaObjCxt): void {
+  checkUnknownRules(it)
+  checkRefsAndKeywords(it)
+}
+
+function typeAndKeywords(it: SchemaObjCxt, errsCount?: Name): void {
+  if (it.opts.jtd) return schemaKeywords(it, [], false, errsCount)
+  const types = getSchemaTypes(it.schema)
+  const checkedTypes = coerceAndCheckDataType(it, types)
+  schemaKeywords(it, types, !checkedTypes, errsCount)
+}
+
+function checkRefsAndKeywords(it: SchemaObjCxt): void {
+  const {schema, errSchemaPath, opts, self} = it
+  if (schema.$ref && opts.ignoreKeywordsWithRef && schemaHasRulesButRef(schema, self.RULES)) {
+    self.logger.warn(`$ref: keywords ignored in schema at path "${errSchemaPath}"`)
+  }
+}
+
+function checkNoDefault(it: SchemaObjCxt): void {
+  const {schema, opts} = it
+  if (schema.default !== undefined && opts.useDefaults && opts.strictSchema) {
+    checkStrictMode(it, "default is ignored in the schema root")
+  }
+}
+
+function updateContext(it: SchemaObjCxt): void {
+  const schId = it.schema[it.opts.schemaId]
+  if (schId) it.baseId = resolveUrl(it.opts.uriResolver, it.baseId, schId)
+}
+
+function checkAsyncSchema(it: SchemaObjCxt): void {
+  if (it.schema.$async && !it.schemaEnv.$async) throw new Error("async schema in sync schema")
+}
+
+function commentKeyword({gen, schemaEnv, schema, errSchemaPath, opts}: SchemaObjCxt): void {
+  const msg = schema.$comment
+  if (opts.$comment === true) {
+    gen.code(_`${N.self}.logger.log(${msg})`)
+  } else if (typeof opts.$comment == "function") {
+    const schemaPath = str`${errSchemaPath}/$comment`
+    const rootName = gen.scopeValue("root", {ref: schemaEnv.root})
+    gen.code(_`${N.self}.opts.$comment(${msg}, ${schemaPath}, ${rootName}.schema)`)
+  }
+}
+
+function returnResults(it: SchemaCxt): void {
+  const {gen, schemaEnv, validateName, ValidationError, opts} = it
+  if (schemaEnv.$async) {
+    // TODO assign unevaluated
+    gen.if(
+      _`${N.errors} === 0`,
+      () => gen.return(N.data),
+      () => gen.throw(_`new ${ValidationError as Name}(${N.vErrors})`)
+    )
+  } else {
+    gen.assign(_`${validateName}.errors`, N.vErrors)
+    if (opts.unevaluated) assignEvaluated(it)
+    gen.return(_`${N.errors} === 0`)
+  }
+}
+
+function assignEvaluated({gen, evaluated, props, items}: SchemaCxt): void {
+  if (props instanceof Name) gen.assign(_`${evaluated}.props`, props)
+  if (items instanceof Name) gen.assign(_`${evaluated}.items`, items)
+}
+
+function schemaKeywords(
+  it: SchemaObjCxt,
+  types: JSONType[],
+  typeErrors: boolean,
+  errsCount?: Name
+): void {
+  const {gen, schema, data, allErrors, opts, self} = it
+  const {RULES} = self
+  if (schema.$ref && (opts.ignoreKeywordsWithRef || !schemaHasRulesButRef(schema, RULES))) {
+    gen.block(() => keywordCode(it, "$ref", (RULES.all.$ref as Rule).definition)) // TODO typecast
+    return
+  }
+  if (!opts.jtd) checkStrictTypes(it, types)
+  gen.block(() => {
+    for (const group of RULES.rules) groupKeywords(group)
+    groupKeywords(RULES.post)
+  })
+
+  function groupKeywords(group: RuleGroup): void {
+    if (!shouldUseGroup(schema, group)) return
+    if (group.type) {
+      gen.if(checkDataType(group.type, data, opts.strictNumbers))
+      iterateKeywords(it, group)
+      if (types.length === 1 && types[0] === group.type && typeErrors) {
+        gen.else()
+        reportTypeError(it)
+      }
+      gen.endIf()
+    } else {
+      iterateKeywords(it, group)
+    }
+    // TODO make it "ok" call?
+    if (!allErrors) gen.if(_`${N.errors} === ${errsCount || 0}`)
+  }
+}
+
+function iterateKeywords(it: SchemaObjCxt, group: RuleGroup): void {
+  const {
+    gen,
+    schema,
+    opts: {useDefaults},
+  } = it
+  if (useDefaults) assignDefaults(it, group.type)
+  gen.block(() => {
+    for (const rule of group.rules) {
+      if (shouldUseRule(schema, rule)) {
+        keywordCode(it, rule.keyword, rule.definition, group.type)
+      }
+    }
+  })
+}
+
+function checkStrictTypes(it: SchemaObjCxt, types: JSONType[]): void {
+  if (it.schemaEnv.meta || !it.opts.strictTypes) return
+  checkContextTypes(it, types)
+  if (!it.opts.allowUnionTypes) checkMultipleTypes(it, types)
+  checkKeywordTypes(it, it.dataTypes)
+}
+
+function checkContextTypes(it: SchemaObjCxt, types: JSONType[]): void {
+  if (!types.length) return
+  if (!it.dataTypes.length) {
+    it.dataTypes = types
+    return
+  }
+  types.forEach((t) => {
+    if (!includesType(it.dataTypes, t)) {
+      strictTypesError(it, `type "${t}" not allowed by context "${it.dataTypes.join(",")}"`)
+    }
+  })
+  narrowSchemaTypes(it, types)
+}
+
+function checkMultipleTypes(it: SchemaObjCxt, ts: JSONType[]): void {
+  if (ts.length > 1 && !(ts.length === 2 && ts.includes("null"))) {
+    strictTypesError(it, "use allowUnionTypes to allow union type keyword")
+  }
+}
+
+function checkKeywordTypes(it: SchemaObjCxt, ts: JSONType[]): void {
+  const rules = it.self.RULES.all
+  for (const keyword in rules) {
+    const rule = rules[keyword]
+    if (typeof rule == "object" && shouldUseRule(it.schema, rule)) {
+      const {type} = rule.definition
+      if (type.length && !type.some((t) => hasApplicableType(ts, t))) {
+        strictTypesError(it, `missing type "${type.join(",")}" for keyword "${keyword}"`)
+      }
+    }
+  }
+}
+
+function hasApplicableType(schTs: JSONType[], kwdT: JSONType): boolean {
+  return schTs.includes(kwdT) || (kwdT === "number" && schTs.includes("integer"))
+}
+
+function includesType(ts: JSONType[], t: JSONType): boolean {
+  return ts.includes(t) || (t === "integer" && ts.includes("number"))
+}
+
+function narrowSchemaTypes(it: SchemaObjCxt, withTypes: JSONType[]): void {
+  const ts: JSONType[] = []
+  for (const t of it.dataTypes) {
+    if (includesType(withTypes, t)) ts.push(t)
+    else if (withTypes.includes("integer") && t === "number") ts.push("integer")
+  }
+  it.dataTypes = ts
+}
+
+function strictTypesError(it: SchemaObjCxt, msg: string): void {
+  const schemaPath = it.schemaEnv.baseId + it.errSchemaPath
+  msg += ` at "${schemaPath}" (strictTypes)`
+  checkStrictMode(it, msg, it.opts.strictTypes)
+}
+
+export class KeywordCxt implements KeywordErrorCxt {
+  readonly gen: CodeGen
+  readonly allErrors?: boolean
+  readonly keyword: string
+  readonly data: Name // Name referencing the current level of the data instance
+  readonly $data?: string | false
+  schema: any // keyword value in the schema
+  readonly schemaValue: Code | number | boolean // Code reference to keyword schema value or primitive value
+  readonly schemaCode: Code | number | boolean // Code reference to resolved schema value (different if schema is $data)
+  readonly schemaType: JSONType[] // allowed type(s) of keyword value in the schema
+  readonly parentSchema: AnySchemaObject
+  readonly errsCount?: Name // Name reference to the number of validation errors collected before this keyword,
+  // requires option trackErrors in keyword definition
+  params: KeywordCxtParams // object to pass parameters to error messages from keyword code
+  readonly it: SchemaObjCxt // schema compilation context (schema is guaranteed to be an object, not boolean)
+  readonly def: AddedKeywordDefinition
+
+  constructor(it: SchemaObjCxt, def: AddedKeywordDefinition, keyword: string) {
+    validateKeywordUsage(it, def, keyword)
+    this.gen = it.gen
+    this.allErrors = it.allErrors
+    this.keyword = keyword
+    this.data = it.data
+    this.schema = it.schema[keyword]
+    this.$data = def.$data && it.opts.$data && this.schema && this.schema.$data
+    this.schemaValue = schemaRefOrVal(it, this.schema, keyword, this.$data)
+    this.schemaType = def.schemaType
+    this.parentSchema = it.schema
+    this.params = {}
+    this.it = it
+    this.def = def
+
+    if (this.$data) {
+      this.schemaCode = it.gen.const("vSchema", getData(this.$data, it))
+    } else {
+      this.schemaCode = this.schemaValue
+      if (!validSchemaType(this.schema, def.schemaType, def.allowUndefined)) {
+        throw new Error(`${keyword} value must be ${JSON.stringify(def.schemaType)}`)
+      }
+    }
+
+    if ("code" in def ? def.trackErrors : def.errors !== false) {
+      this.errsCount = it.gen.const("_errs", N.errors)
+    }
+  }
+
+  result(condition: Code, successAction?: () => void, failAction?: () => void): void {
+    this.failResult(not(condition), successAction, failAction)
+  }
+
+  failResult(condition: Code, successAction?: () => void, failAction?: () => void): void {
+    this.gen.if(condition)
+    if (failAction) failAction()
+    else this.error()
+    if (successAction) {
+      this.gen.else()
+      successAction()
+      if (this.allErrors) this.gen.endIf()
+    } else {
+      if (this.allErrors) this.gen.endIf()
+      else this.gen.else()
+    }
+  }
+
+  pass(condition: Code, failAction?: () => void): void {
+    this.failResult(not(condition), undefined, failAction)
+  }
+
+  fail(condition?: Code): void {
+    if (condition === undefined) {
+      this.error()
+      if (!this.allErrors) this.gen.if(false) // this branch will be removed by gen.optimize
+      return
+    }
+    this.gen.if(condition)
+    this.error()
+    if (this.allErrors) this.gen.endIf()
+    else this.gen.else()
+  }
+
+  fail$data(condition: Code): void {
+    if (!this.$data) return this.fail(condition)
+    const {schemaCode} = this
+    this.fail(_`${schemaCode} !== undefined && (${or(this.invalid$data(), condition)})`)
+  }
+
+  error(append?: boolean, errorParams?: KeywordCxtParams, errorPaths?: ErrorPaths): void {
+    if (errorParams) {
+      this.setParams(errorParams)
+      this._error(append, errorPaths)
+      this.setParams({})
+      return
+    }
+    this._error(append, errorPaths)
+  }
+
+  private _error(append?: boolean, errorPaths?: ErrorPaths): void {
+    ;(append ? reportExtraError : reportError)(this, this.def.error, errorPaths)
+  }
+
+  $dataError(): void {
+    reportError(this, this.def.$dataError || keyword$DataError)
+  }
+
+  reset(): void {
+    if (this.errsCount === undefined) throw new Error('add "trackErrors" to keyword definition')
+    resetErrorsCount(this.gen, this.errsCount)
+  }
+
+  ok(cond: Code | boolean): void {
+    if (!this.allErrors) this.gen.if(cond)
+  }
+
+  setParams(obj: KeywordCxtParams, assign?: true): void {
+    if (assign) Object.assign(this.params, obj)
+    else this.params = obj
+  }
+
+  block$data(valid: Name, codeBlock: () => void, $dataValid: Code = nil): void {
+    this.gen.block(() => {
+      this.check$data(valid, $dataValid)
+      codeBlock()
+    })
+  }
+
+  check$data(valid: Name = nil, $dataValid: Code = nil): void {
+    if (!this.$data) return
+    const {gen, schemaCode, schemaType, def} = this
+    gen.if(or(_`${schemaCode} === undefined`, $dataValid))
+    if (valid !== nil) gen.assign(valid, true)
+    if (schemaType.length || def.validateSchema) {
+      gen.elseIf(this.invalid$data())
+      this.$dataError()
+      if (valid !== nil) gen.assign(valid, false)
+    }
+    gen.else()
+  }
+
+  invalid$data(): Code {
+    const {gen, schemaCode, schemaType, def, it} = this
+    return or(wrong$DataType(), invalid$DataSchema())
+
+    function wrong$DataType(): Code {
+      if (schemaType.length) {
+        /* istanbul ignore if */
+        if (!(schemaCode instanceof Name)) throw new Error("ajv implementation error")
+        const st = Array.isArray(schemaType) ? schemaType : [schemaType]
+        return _`${checkDataTypes(st, schemaCode, it.opts.strictNumbers, DataType.Wrong)}`
+      }
+      return nil
+    }
+
+    function invalid$DataSchema(): Code {
+      if (def.validateSchema) {
+        const validateSchemaRef = gen.scopeValue("validate$data", {ref: def.validateSchema}) // TODO value.code for standalone
+        return _`!${validateSchemaRef}(${schemaCode})`
+      }
+      return nil
+    }
+  }
+
+  subschema(appl: SubschemaArgs, valid: Name): SchemaCxt {
+    const subschema = getSubschema(this.it, appl)
+    extendSubschemaData(subschema, this.it, appl)
+    extendSubschemaMode(subschema, appl)
+    const nextContext = {...this.it, ...subschema, items: undefined, props: undefined}
+    subschemaCode(nextContext, valid)
+    return nextContext
+  }
+
+  mergeEvaluated(schemaCxt: SchemaCxt, toName?: typeof Name): void {
+    const {it, gen} = this
+    if (!it.opts.unevaluated) return
+    if (it.props !== true && schemaCxt.props !== undefined) {
+      it.props = mergeEvaluated.props(gen, schemaCxt.props, it.props, toName)
+    }
+    if (it.items !== true && schemaCxt.items !== undefined) {
+      it.items = mergeEvaluated.items(gen, schemaCxt.items, it.items, toName)
+    }
+  }
+
+  mergeValidEvaluated(schemaCxt: SchemaCxt, valid: Name): boolean | void {
+    const {it, gen} = this
+    if (it.opts.unevaluated && (it.props !== true || it.items !== true)) {
+      gen.if(valid, () => this.mergeEvaluated(schemaCxt, Name))
+      return true
+    }
+  }
+}
+
+function keywordCode(
+  it: SchemaObjCxt,
+  keyword: string,
+  def: AddedKeywordDefinition,
+  ruleType?: JSONType
+): void {
+  const cxt = new KeywordCxt(it, def, keyword)
+  if ("code" in def) {
+    def.code(cxt, ruleType)
+  } else if (cxt.$data && def.validate) {
+    funcKeywordCode(cxt, def)
+  } else if ("macro" in def) {
+    macroKeywordCode(cxt, def)
+  } else if (def.compile || def.validate) {
+    funcKeywordCode(cxt, def)
+  }
+}
+
+const JSON_POINTER = /^\/(?:[^~]|~0|~1)*$/
+const RELATIVE_JSON_POINTER = /^([0-9]+)(#|\/(?:[^~]|~0|~1)*)?$/
+export function getData(
+  $data: string,
+  {dataLevel, dataNames, dataPathArr}: SchemaCxt
+): Code | number {
+  let jsonPointer
+  let data: Code
+  if ($data === "") return N.rootData
+  if ($data[0] === "/") {
+    if (!JSON_POINTER.test($data)) throw new Error(`Invalid JSON-pointer: ${$data}`)
+    jsonPointer = $data
+    data = N.rootData
+  } else {
+    const matches = RELATIVE_JSON_POINTER.exec($data)
+    if (!matches) throw new Error(`Invalid JSON-pointer: ${$data}`)
+    const up: number = +matches[1]
+    jsonPointer = matches[2]
+    if (jsonPointer === "#") {
+      if (up >= dataLevel) throw new Error(errorMsg("property/index", up))
+      return dataPathArr[dataLevel - up]
+    }
+    if (up > dataLevel) throw new Error(errorMsg("data", up))
+    data = dataNames[dataLevel - up]
+    if (!jsonPointer) return data
+  }
+
+  let expr = data
+  const segments = jsonPointer.split("/")
+  for (const segment of segments) {
+    if (segment) {
+      data = _`${data}${getProperty(unescapeJsonPointer(segment))}`
+      expr = _`${expr} && ${data}`
+    }
+  }
+  return expr
+
+  function errorMsg(pointerType: string, up: number): string {
+    return `Cannot access ${pointerType} ${up} levels up, current level is ${dataLevel}`
+  }
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/compile/validate/keyword.ts

@@ -0,0 +1,171 @@
+import type {KeywordCxt} from "."
+import type {
+  AnySchema,
+  SchemaValidateFunction,
+  AnyValidateFunction,
+  AddedKeywordDefinition,
+  MacroKeywordDefinition,
+  FuncKeywordDefinition,
+} from "../../types"
+import type {SchemaObjCxt} from ".."
+import {_, nil, not, stringify, Code, Name, CodeGen} from "../codegen"
+import N from "../names"
+import type {JSONType} from "../rules"
+import {callValidateCode} from "../../vocabularies/code"
+import {extendErrors} from "../errors"
+
+type KeywordCompilationResult = AnySchema | SchemaValidateFunction | AnyValidateFunction
+
+export function macroKeywordCode(cxt: KeywordCxt, def: MacroKeywordDefinition): void {
+  const {gen, keyword, schema, parentSchema, it} = cxt
+  const macroSchema = def.macro.call(it.self, schema, parentSchema, it)
+  const schemaRef = useKeyword(gen, keyword, macroSchema)
+  if (it.opts.validateSchema !== false) it.self.validateSchema(macroSchema, true)
+
+  const valid = gen.name("valid")
+  cxt.subschema(
+    {
+      schema: macroSchema,
+      schemaPath: nil,
+      errSchemaPath: `${it.errSchemaPath}/${keyword}`,
+      topSchemaRef: schemaRef,
+      compositeRule: true,
+    },
+    valid
+  )
+  cxt.pass(valid, () => cxt.error(true))
+}
+
+export function funcKeywordCode(cxt: KeywordCxt, def: FuncKeywordDefinition): void {
+  const {gen, keyword, schema, parentSchema, $data, it} = cxt
+  checkAsyncKeyword(it, def)
+  const validate =
+    !$data && def.compile ? def.compile.call(it.self, schema, parentSchema, it) : def.validate
+  const validateRef = useKeyword(gen, keyword, validate)
+  const valid = gen.let("valid")
+  cxt.block$data(valid, validateKeyword)
+  cxt.ok(def.valid ?? valid)
+
+  function validateKeyword(): void {
+    if (def.errors === false) {
+      assignValid()
+      if (def.modifying) modifyData(cxt)
+      reportErrs(() => cxt.error())
+    } else {
+      const ruleErrs = def.async ? validateAsync() : validateSync()
+      if (def.modifying) modifyData(cxt)
+      reportErrs(() => addErrs(cxt, ruleErrs))
+    }
+  }
+
+  function validateAsync(): Name {
+    const ruleErrs = gen.let("ruleErrs", null)
+    gen.try(
+      () => assignValid(_`await `),
+      (e) =>
+        gen.assign(valid, false).if(
+          _`${e} instanceof ${it.ValidationError as Name}`,
+          () => gen.assign(ruleErrs, _`${e}.errors`),
+          () => gen.throw(e)
+        )
+    )
+    return ruleErrs
+  }
+
+  function validateSync(): Code {
+    const validateErrs = _`${validateRef}.errors`
+    gen.assign(validateErrs, null)
+    assignValid(nil)
+    return validateErrs
+  }
+
+  function assignValid(_await: Code = def.async ? _`await ` : nil): void {
+    const passCxt = it.opts.passContext ? N.this : N.self
+    const passSchema = !(("compile" in def && !$data) || def.schema === false)
+    gen.assign(
+      valid,
+      _`${_await}${callValidateCode(cxt, validateRef, passCxt, passSchema)}`,
+      def.modifying
+    )
+  }
+
+  function reportErrs(errors: () => void): void {
+    gen.if(not(def.valid ?? valid), errors)
+  }
+}
+
+function modifyData(cxt: KeywordCxt): void {
+  const {gen, data, it} = cxt
+  gen.if(it.parentData, () => gen.assign(data, _`${it.parentData}[${it.parentDataProperty}]`))
+}
+
+function addErrs(cxt: KeywordCxt, errs: Code): void {
+  const {gen} = cxt
+  gen.if(
+    _`Array.isArray(${errs})`,
+    () => {
+      gen
+        .assign(N.vErrors, _`${N.vErrors} === null ? ${errs} : ${N.vErrors}.concat(${errs})`)
+        .assign(N.errors, _`${N.vErrors}.length`)
+      extendErrors(cxt)
+    },
+    () => cxt.error()
+  )
+}
+
+function checkAsyncKeyword({schemaEnv}: SchemaObjCxt, def: FuncKeywordDefinition): void {
+  if (def.async && !schemaEnv.$async) throw new Error("async keyword in sync schema")
+}
+
+function useKeyword(gen: CodeGen, keyword: string, result?: KeywordCompilationResult): Name {
+  if (result === undefined) throw new Error(`keyword "${keyword}" failed to compile`)
+  return gen.scopeValue(
+    "keyword",
+    typeof result == "function" ? {ref: result} : {ref: result, code: stringify(result)}
+  )
+}
+
+export function validSchemaType(
+  schema: unknown,
+  schemaType: JSONType[],
+  allowUndefined = false
+): boolean {
+  // TODO add tests
+  return (
+    !schemaType.length ||
+    schemaType.some((st) =>
+      st === "array"
+        ? Array.isArray(schema)
+        : st === "object"
+        ? schema && typeof schema == "object" && !Array.isArray(schema)
+        : typeof schema == st || (allowUndefined && typeof schema == "undefined")
+    )
+  )
+}
+
+export function validateKeywordUsage(
+  {schema, opts, self, errSchemaPath}: SchemaObjCxt,
+  def: AddedKeywordDefinition,
+  keyword: string
+): void {
+  /* istanbul ignore if */
+  if (Array.isArray(def.keyword) ? !def.keyword.includes(keyword) : def.keyword !== keyword) {
+    throw new Error("ajv implementation error")
+  }
+
+  const deps = def.dependencies
+  if (deps?.some((kwd) => !Object.prototype.hasOwnProperty.call(schema, kwd))) {
+    throw new Error(`parent schema must have dependencies of ${keyword}: ${deps.join(",")}`)
+  }
+
+  if (def.validateSchema) {
+    const valid = def.validateSchema(schema[keyword])
+    if (!valid) {
+      const msg =
+        `keyword "${keyword}" value is invalid at path "${errSchemaPath}": ` +
+        self.errorsText(def.validateSchema.errors)
+      if (opts.validateSchema === "log") self.logger.error(msg)
+      else throw new Error(msg)
+    }
+  }
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/compile/validate/subschema.ts

@@ -0,0 +1,135 @@
+import type {AnySchema} from "../../types"
+import type {SchemaObjCxt} from ".."
+import {_, str, getProperty, Code, Name} from "../codegen"
+import {escapeFragment, getErrorPath, Type} from "../util"
+import type {JSONType} from "../rules"
+
+export interface SubschemaContext {
+  // TODO use Optional? align with SchemCxt property types
+  schema: AnySchema
+  schemaPath: Code
+  errSchemaPath: string
+  topSchemaRef?: Code
+  errorPath?: Code
+  dataLevel?: number
+  dataTypes?: JSONType[]
+  data?: Name
+  parentData?: Name
+  parentDataProperty?: Code | number
+  dataNames?: Name[]
+  dataPathArr?: (Code | number)[]
+  propertyName?: Name
+  jtdDiscriminator?: string
+  jtdMetadata?: boolean
+  compositeRule?: true
+  createErrors?: boolean
+  allErrors?: boolean
+}
+
+export type SubschemaArgs = Partial<{
+  keyword: string
+  schemaProp: string | number
+  schema: AnySchema
+  schemaPath: Code
+  errSchemaPath: string
+  topSchemaRef: Code
+  data: Name | Code
+  dataProp: Code | string | number
+  dataTypes: JSONType[]
+  definedProperties: Set<string>
+  propertyName: Name
+  dataPropType: Type
+  jtdDiscriminator: string
+  jtdMetadata: boolean
+  compositeRule: true
+  createErrors: boolean
+  allErrors: boolean
+}>
+
+export function getSubschema(
+  it: SchemaObjCxt,
+  {keyword, schemaProp, schema, schemaPath, errSchemaPath, topSchemaRef}: SubschemaArgs
+): SubschemaContext {
+  if (keyword !== undefined && schema !== undefined) {
+    throw new Error('both "keyword" and "schema" passed, only one allowed')
+  }
+
+  if (keyword !== undefined) {
+    const sch = it.schema[keyword]
+    return schemaProp === undefined
+      ? {
+          schema: sch,
+          schemaPath: _`${it.schemaPath}${getProperty(keyword)}`,
+          errSchemaPath: `${it.errSchemaPath}/${keyword}`,
+        }
+      : {
+          schema: sch[schemaProp],
+          schemaPath: _`${it.schemaPath}${getProperty(keyword)}${getProperty(schemaProp)}`,
+          errSchemaPath: `${it.errSchemaPath}/${keyword}/${escapeFragment(schemaProp)}`,
+        }
+  }
+
+  if (schema !== undefined) {
+    if (schemaPath === undefined || errSchemaPath === undefined || topSchemaRef === undefined) {
+      throw new Error('"schemaPath", "errSchemaPath" and "topSchemaRef" are required with "schema"')
+    }
+    return {
+      schema,
+      schemaPath,
+      topSchemaRef,
+      errSchemaPath,
+    }
+  }
+
+  throw new Error('either "keyword" or "schema" must be passed')
+}
+
+export function extendSubschemaData(
+  subschema: SubschemaContext,
+  it: SchemaObjCxt,
+  {dataProp, dataPropType: dpType, data, dataTypes, propertyName}: SubschemaArgs
+): void {
+  if (data !== undefined && dataProp !== undefined) {
+    throw new Error('both "data" and "dataProp" passed, only one allowed')
+  }
+
+  const {gen} = it
+
+  if (dataProp !== undefined) {
+    const {errorPath, dataPathArr, opts} = it
+    const nextData = gen.let("data", _`${it.data}${getProperty(dataProp)}`, true)
+    dataContextProps(nextData)
+    subschema.errorPath = str`${errorPath}${getErrorPath(dataProp, dpType, opts.jsPropertySyntax)}`
+    subschema.parentDataProperty = _`${dataProp}`
+    subschema.dataPathArr = [...dataPathArr, subschema.parentDataProperty]
+  }
+
+  if (data !== undefined) {
+    const nextData = data instanceof Name ? data : gen.let("data", data, true) // replaceable if used once?
+    dataContextProps(nextData)
+    if (propertyName !== undefined) subschema.propertyName = propertyName
+    // TODO something is possibly wrong here with not changing parentDataProperty and not appending dataPathArr
+  }
+
+  if (dataTypes) subschema.dataTypes = dataTypes
+
+  function dataContextProps(_nextData: Name): void {
+    subschema.data = _nextData
+    subschema.dataLevel = it.dataLevel + 1
+    subschema.dataTypes = []
+    it.definedProperties = new Set<string>()
+    subschema.parentData = it.data
+    subschema.dataNames = [...it.dataNames, _nextData]
+  }
+}
+
+export function extendSubschemaMode(
+  subschema: SubschemaContext,
+  {jtdDiscriminator, jtdMetadata, compositeRule, createErrors, allErrors}: SubschemaArgs
+): void {
+  if (compositeRule !== undefined) subschema.compositeRule = compositeRule
+  if (createErrors !== undefined) subschema.createErrors = createErrors
+  if (allErrors !== undefined) subschema.allErrors = allErrors
+  subschema.jtdDiscriminator = jtdDiscriminator // not inherited
+  subschema.jtdMetadata = jtdMetadata // not inherited
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/core.ts

@@ -0,0 +1,892 @@
+export {
+  Format,
+  FormatDefinition,
+  AsyncFormatDefinition,
+  KeywordDefinition,
+  KeywordErrorDefinition,
+  CodeKeywordDefinition,
+  MacroKeywordDefinition,
+  FuncKeywordDefinition,
+  Vocabulary,
+  Schema,
+  SchemaObject,
+  AnySchemaObject,
+  AsyncSchema,
+  AnySchema,
+  ValidateFunction,
+  AsyncValidateFunction,
+  AnyValidateFunction,
+  ErrorObject,
+  ErrorNoParams,
+} from "./types"
+
+export {SchemaCxt, SchemaObjCxt} from "./compile"
+export interface Plugin<Opts> {
+  (ajv: Ajv, options?: Opts): Ajv
+  [prop: string]: any
+}
+
+export {KeywordCxt} from "./compile/validate"
+export {DefinedError} from "./vocabularies/errors"
+export {JSONType} from "./compile/rules"
+export {JSONSchemaType} from "./types/json-schema"
+export {JTDSchemaType, SomeJTDSchemaType, JTDDataType} from "./types/jtd-schema"
+export {_, str, stringify, nil, Name, Code, CodeGen, CodeGenOptions} from "./compile/codegen"
+
+import type {
+  Schema,
+  AnySchema,
+  AnySchemaObject,
+  SchemaObject,
+  AsyncSchema,
+  Vocabulary,
+  KeywordDefinition,
+  AddedKeywordDefinition,
+  AnyValidateFunction,
+  ValidateFunction,
+  AsyncValidateFunction,
+  ErrorObject,
+  Format,
+  AddedFormat,
+  RegExpEngine,
+  UriResolver,
+} from "./types"
+import type {JSONSchemaType} from "./types/json-schema"
+import type {JTDSchemaType, SomeJTDSchemaType, JTDDataType} from "./types/jtd-schema"
+import ValidationError from "./runtime/validation_error"
+import MissingRefError from "./compile/ref_error"
+import {getRules, ValidationRules, Rule, RuleGroup, JSONType} from "./compile/rules"
+import {SchemaEnv, compileSchema, resolveSchema} from "./compile"
+import {Code, ValueScope} from "./compile/codegen"
+import {normalizeId, getSchemaRefs} from "./compile/resolve"
+import {getJSONTypes} from "./compile/validate/dataType"
+import {eachItem} from "./compile/util"
+import * as $dataRefSchema from "./refs/data.json"
+
+import DefaultUriResolver from "./runtime/uri"
+
+const defaultRegExp: RegExpEngine = (str, flags) => new RegExp(str, flags)
+defaultRegExp.code = "new RegExp"
+
+const META_IGNORE_OPTIONS: (keyof Options)[] = ["removeAdditional", "useDefaults", "coerceTypes"]
+const EXT_SCOPE_NAMES = new Set([
+  "validate",
+  "serialize",
+  "parse",
+  "wrapper",
+  "root",
+  "schema",
+  "keyword",
+  "pattern",
+  "formats",
+  "validate$data",
+  "func",
+  "obj",
+  "Error",
+])
+
+export type Options = CurrentOptions & DeprecatedOptions
+
+export interface CurrentOptions {
+  // strict mode options (NEW)
+  strict?: boolean | "log"
+  strictSchema?: boolean | "log"
+  strictNumbers?: boolean | "log"
+  strictTypes?: boolean | "log"
+  strictTuples?: boolean | "log"
+  strictRequired?: boolean | "log"
+  allowMatchingProperties?: boolean // disables a strict mode restriction
+  allowUnionTypes?: boolean
+  validateFormats?: boolean
+  // validation and reporting options:
+  $data?: boolean
+  allErrors?: boolean
+  verbose?: boolean
+  discriminator?: boolean
+  unicodeRegExp?: boolean
+  timestamp?: "string" | "date" // JTD only
+  parseDate?: boolean // JTD only
+  allowDate?: boolean // JTD only
+  specialNumbers?: "fast" | "null" // JTD only
+  $comment?:
+    | true
+    | ((comment: string, schemaPath?: string, rootSchema?: AnySchemaObject) => unknown)
+  formats?: {[Name in string]?: Format}
+  keywords?: Vocabulary
+  schemas?: AnySchema[] | {[Key in string]?: AnySchema}
+  logger?: Logger | false
+  loadSchema?: (uri: string) => Promise<AnySchemaObject>
+  // options to modify validated data:
+  removeAdditional?: boolean | "all" | "failing"
+  useDefaults?: boolean | "empty"
+  coerceTypes?: boolean | "array"
+  // advanced options:
+  next?: boolean // NEW
+  unevaluated?: boolean // NEW
+  dynamicRef?: boolean // NEW
+  schemaId?: "id" | "$id"
+  jtd?: boolean // NEW
+  meta?: SchemaObject | boolean
+  defaultMeta?: string | AnySchemaObject
+  validateSchema?: boolean | "log"
+  addUsedSchema?: boolean
+  inlineRefs?: boolean | number
+  passContext?: boolean
+  loopRequired?: number
+  loopEnum?: number // NEW
+  ownProperties?: boolean
+  multipleOfPrecision?: number
+  int32range?: boolean // JTD only
+  messages?: boolean
+  code?: CodeOptions // NEW
+  uriResolver?: UriResolver
+}
+
+export interface CodeOptions {
+  es5?: boolean
+  esm?: boolean
+  lines?: boolean
+  optimize?: boolean | number
+  formats?: Code // code to require (or construct) map of available formats - for standalone code
+  source?: boolean
+  process?: (code: string, schema?: SchemaEnv) => string
+  regExp?: RegExpEngine
+}
+
+interface InstanceCodeOptions extends CodeOptions {
+  regExp: RegExpEngine
+  optimize: number
+}
+
+interface DeprecatedOptions {
+  /** @deprecated */
+  ignoreKeywordsWithRef?: boolean
+  /** @deprecated */
+  jsPropertySyntax?: boolean // added instead of jsonPointers
+  /** @deprecated */
+  unicode?: boolean
+}
+
+interface RemovedOptions {
+  format?: boolean
+  errorDataPath?: "object" | "property"
+  nullable?: boolean // "nullable" keyword is supported by default
+  jsonPointers?: boolean
+  extendRefs?: true | "ignore" | "fail"
+  missingRefs?: true | "ignore" | "fail"
+  processCode?: (code: string, schema?: SchemaEnv) => string
+  sourceCode?: boolean
+  strictDefaults?: boolean
+  strictKeywords?: boolean
+  uniqueItems?: boolean
+  unknownFormats?: true | string[] | "ignore"
+  cache?: any
+  serialize?: (schema: AnySchema) => unknown
+  ajvErrors?: boolean
+}
+
+type OptionsInfo<T extends RemovedOptions | DeprecatedOptions> = {
+  [K in keyof T]-?: string | undefined
+}
+
+const removedOptions: OptionsInfo<RemovedOptions> = {
+  errorDataPath: "",
+  format: "`validateFormats: false` can be used instead.",
+  nullable: '"nullable" keyword is supported by default.',
+  jsonPointers: "Deprecated jsPropertySyntax can be used instead.",
+  extendRefs: "Deprecated ignoreKeywordsWithRef can be used instead.",
+  missingRefs: "Pass empty schema with $id that should be ignored to ajv.addSchema.",
+  processCode: "Use option `code: {process: (code, schemaEnv: object) => string}`",
+  sourceCode: "Use option `code: {source: true}`",
+  strictDefaults: "It is default now, see option `strict`.",
+  strictKeywords: "It is default now, see option `strict`.",
+  uniqueItems: '"uniqueItems" keyword is always validated.',
+  unknownFormats: "Disable strict mode or pass `true` to `ajv.addFormat` (or `formats` option).",
+  cache: "Map is used as cache, schema object as key.",
+  serialize: "Map is used as cache, schema object as key.",
+  ajvErrors: "It is default now.",
+}
+
+const deprecatedOptions: OptionsInfo<DeprecatedOptions> = {
+  ignoreKeywordsWithRef: "",
+  jsPropertySyntax: "",
+  unicode: '"minLength"/"maxLength" account for unicode characters by default.',
+}
+
+type RequiredInstanceOptions = {
+  [K in
+    | "strictSchema"
+    | "strictNumbers"
+    | "strictTypes"
+    | "strictTuples"
+    | "strictRequired"
+    | "inlineRefs"
+    | "loopRequired"
+    | "loopEnum"
+    | "meta"
+    | "messages"
+    | "schemaId"
+    | "addUsedSchema"
+    | "validateSchema"
+    | "validateFormats"
+    | "int32range"
+    | "unicodeRegExp"
+    | "uriResolver"]: NonNullable<Options[K]>
+} & {code: InstanceCodeOptions}
+
+export type InstanceOptions = Options & RequiredInstanceOptions
+
+const MAX_EXPRESSION = 200
+
+// eslint-disable-next-line complexity
+function requiredOptions(o: Options): RequiredInstanceOptions {
+  const s = o.strict
+  const _optz = o.code?.optimize
+  const optimize = _optz === true || _optz === undefined ? 1 : _optz || 0
+  const regExp = o.code?.regExp ?? defaultRegExp
+  const uriResolver = o.uriResolver ?? DefaultUriResolver
+  return {
+    strictSchema: o.strictSchema ?? s ?? true,
+    strictNumbers: o.strictNumbers ?? s ?? true,
+    strictTypes: o.strictTypes ?? s ?? "log",
+    strictTuples: o.strictTuples ?? s ?? "log",
+    strictRequired: o.strictRequired ?? s ?? false,
+    code: o.code ? {...o.code, optimize, regExp} : {optimize, regExp},
+    loopRequired: o.loopRequired ?? MAX_EXPRESSION,
+    loopEnum: o.loopEnum ?? MAX_EXPRESSION,
+    meta: o.meta ?? true,
+    messages: o.messages ?? true,
+    inlineRefs: o.inlineRefs ?? true,
+    schemaId: o.schemaId ?? "$id",
+    addUsedSchema: o.addUsedSchema ?? true,
+    validateSchema: o.validateSchema ?? true,
+    validateFormats: o.validateFormats ?? true,
+    unicodeRegExp: o.unicodeRegExp ?? true,
+    int32range: o.int32range ?? true,
+    uriResolver: uriResolver,
+  }
+}
+
+export interface Logger {
+  log(...args: unknown[]): unknown
+  warn(...args: unknown[]): unknown
+  error(...args: unknown[]): unknown
+}
+
+export default class Ajv {
+  opts: InstanceOptions
+  errors?: ErrorObject[] | null // errors from the last validation
+  logger: Logger
+  // shared external scope values for compiled functions
+  readonly scope: ValueScope
+  readonly schemas: {[Key in string]?: SchemaEnv} = {}
+  readonly refs: {[Ref in string]?: SchemaEnv | string} = {}
+  readonly formats: {[Name in string]?: AddedFormat} = {}
+  readonly RULES: ValidationRules
+  readonly _compilations: Set<SchemaEnv> = new Set()
+  private readonly _loading: {[Ref in string]?: Promise<AnySchemaObject>} = {}
+  private readonly _cache: Map<AnySchema, SchemaEnv> = new Map()
+  private readonly _metaOpts: InstanceOptions
+
+  static ValidationError = ValidationError
+  static MissingRefError = MissingRefError
+
+  constructor(opts: Options = {}) {
+    opts = this.opts = {...opts, ...requiredOptions(opts)}
+    const {es5, lines} = this.opts.code
+
+    this.scope = new ValueScope({scope: {}, prefixes: EXT_SCOPE_NAMES, es5, lines})
+    this.logger = getLogger(opts.logger)
+    const formatOpt = opts.validateFormats
+    opts.validateFormats = false
+
+    this.RULES = getRules()
+    checkOptions.call(this, removedOptions, opts, "NOT SUPPORTED")
+    checkOptions.call(this, deprecatedOptions, opts, "DEPRECATED", "warn")
+    this._metaOpts = getMetaSchemaOptions.call(this)
+
+    if (opts.formats) addInitialFormats.call(this)
+    this._addVocabularies()
+    this._addDefaultMetaSchema()
+    if (opts.keywords) addInitialKeywords.call(this, opts.keywords)
+    if (typeof opts.meta == "object") this.addMetaSchema(opts.meta)
+    addInitialSchemas.call(this)
+    opts.validateFormats = formatOpt
+  }
+
+  _addVocabularies(): void {
+    this.addKeyword("$async")
+  }
+
+  _addDefaultMetaSchema(): void {
+    const {$data, meta, schemaId} = this.opts
+    let _dataRefSchema: SchemaObject = $dataRefSchema
+    if (schemaId === "id") {
+      _dataRefSchema = {...$dataRefSchema}
+      _dataRefSchema.id = _dataRefSchema.$id
+      delete _dataRefSchema.$id
+    }
+    if (meta && $data) this.addMetaSchema(_dataRefSchema, _dataRefSchema[schemaId], false)
+  }
+
+  defaultMeta(): string | AnySchemaObject | undefined {
+    const {meta, schemaId} = this.opts
+    return (this.opts.defaultMeta = typeof meta == "object" ? meta[schemaId] || meta : undefined)
+  }
+
+  // Validate data using schema
+  // AnySchema will be compiled and cached using schema itself as a key for Map
+  validate(schema: Schema | string, data: unknown): boolean
+  validate(schemaKeyRef: AnySchema | string, data: unknown): boolean | Promise<unknown>
+  validate<T>(schema: Schema | JSONSchemaType<T> | string, data: unknown): data is T
+  // Separated for type inference to work
+  // eslint-disable-next-line @typescript-eslint/unified-signatures
+  validate<T>(schema: JTDSchemaType<T>, data: unknown): data is T
+  // This overload is only intended for typescript inference, the first
+  // argument prevents manual type annotation from matching this overload
+  // eslint-disable-next-line @typescript-eslint/no-unused-vars
+  validate<N extends never, T extends SomeJTDSchemaType>(
+    schema: T,
+    data: unknown
+  ): data is JTDDataType<T>
+  // eslint-disable-next-line @typescript-eslint/no-redundant-type-constituents
+  validate<T>(schema: AsyncSchema, data: unknown | T): Promise<T>
+  validate<T>(schemaKeyRef: AnySchema | string, data: unknown): data is T | Promise<T>
+  validate<T>(
+    schemaKeyRef: AnySchema | string, // key, ref or schema object
+    // eslint-disable-next-line @typescript-eslint/no-redundant-type-constituents
+    data: unknown | T // to be validated
+  ): boolean | Promise<T> {
+    let v: AnyValidateFunction | undefined
+    if (typeof schemaKeyRef == "string") {
+      v = this.getSchema<T>(schemaKeyRef)
+      if (!v) throw new Error(`no schema with key or ref "${schemaKeyRef}"`)
+    } else {
+      v = this.compile<T>(schemaKeyRef)
+    }
+
+    const valid = v(data)
+    if (!("$async" in v)) this.errors = v.errors
+    return valid
+  }
+
+  // Create validation function for passed schema
+  // _meta: true if schema is a meta-schema. Used internally to compile meta schemas of user-defined keywords.
+  compile<T = unknown>(schema: Schema | JSONSchemaType<T>, _meta?: boolean): ValidateFunction<T>
+  // Separated for type inference to work
+  // eslint-disable-next-line @typescript-eslint/unified-signatures
+  compile<T = unknown>(schema: JTDSchemaType<T>, _meta?: boolean): ValidateFunction<T>
+  // This overload is only intended for typescript inference, the first
+  // argument prevents manual type annotation from matching this overload
+  // eslint-disable-next-line @typescript-eslint/no-unused-vars
+  compile<N extends never, T extends SomeJTDSchemaType>(
+    schema: T,
+    _meta?: boolean
+  ): ValidateFunction<JTDDataType<T>>
+  compile<T = unknown>(schema: AsyncSchema, _meta?: boolean): AsyncValidateFunction<T>
+  compile<T = unknown>(schema: AnySchema, _meta?: boolean): AnyValidateFunction<T>
+  compile<T = unknown>(schema: AnySchema, _meta?: boolean): AnyValidateFunction<T> {
+    const sch = this._addSchema(schema, _meta)
+    return (sch.validate || this._compileSchemaEnv(sch)) as AnyValidateFunction<T>
+  }
+
+  // Creates validating function for passed schema with asynchronous loading of missing schemas.
+  // `loadSchema` option should be a function that accepts schema uri and returns promise that resolves with the schema.
+  // TODO allow passing schema URI
+  // meta - optional true to compile meta-schema
+  compileAsync<T = unknown>(
+    schema: SchemaObject | JSONSchemaType<T>,
+    _meta?: boolean
+  ): Promise<ValidateFunction<T>>
+  // Separated for type inference to work
+  // eslint-disable-next-line @typescript-eslint/unified-signatures
+  compileAsync<T = unknown>(schema: JTDSchemaType<T>, _meta?: boolean): Promise<ValidateFunction<T>>
+  compileAsync<T = unknown>(schema: AsyncSchema, meta?: boolean): Promise<AsyncValidateFunction<T>>
+  // eslint-disable-next-line @typescript-eslint/unified-signatures
+  compileAsync<T = unknown>(
+    schema: AnySchemaObject,
+    meta?: boolean
+  ): Promise<AnyValidateFunction<T>>
+  compileAsync<T = unknown>(
+    schema: AnySchemaObject,
+    meta?: boolean
+  ): Promise<AnyValidateFunction<T>> {
+    if (typeof this.opts.loadSchema != "function") {
+      throw new Error("options.loadSchema should be a function")
+    }
+    const {loadSchema} = this.opts
+    return runCompileAsync.call(this, schema, meta)
+
+    async function runCompileAsync(
+      this: Ajv,
+      _schema: AnySchemaObject,
+      _meta?: boolean
+    ): Promise<AnyValidateFunction> {
+      await loadMetaSchema.call(this, _schema.$schema)
+      const sch = this._addSchema(_schema, _meta)
+      return sch.validate || _compileAsync.call(this, sch)
+    }
+
+    async function loadMetaSchema(this: Ajv, $ref?: string): Promise<void> {
+      if ($ref && !this.getSchema($ref)) {
+        await runCompileAsync.call(this, {$ref}, true)
+      }
+    }
+
+    async function _compileAsync(this: Ajv, sch: SchemaEnv): Promise<AnyValidateFunction> {
+      try {
+        return this._compileSchemaEnv(sch)
+      } catch (e) {
+        if (!(e instanceof MissingRefError)) throw e
+        checkLoaded.call(this, e)
+        await loadMissingSchema.call(this, e.missingSchema)
+        return _compileAsync.call(this, sch)
+      }
+    }
+
+    function checkLoaded(this: Ajv, {missingSchema: ref, missingRef}: MissingRefError): void {
+      if (this.refs[ref]) {
+        throw new Error(`AnySchema ${ref} is loaded but ${missingRef} cannot be resolved`)
+      }
+    }
+
+    async function loadMissingSchema(this: Ajv, ref: string): Promise<void> {
+      const _schema = await _loadSchema.call(this, ref)
+      if (!this.refs[ref]) await loadMetaSchema.call(this, _schema.$schema)
+      if (!this.refs[ref]) this.addSchema(_schema, ref, meta)
+    }
+
+    async function _loadSchema(this: Ajv, ref: string): Promise<AnySchemaObject> {
+      const p = this._loading[ref]
+      if (p) return p
+      try {
+        return await (this._loading[ref] = loadSchema(ref))
+      } finally {
+        delete this._loading[ref]
+      }
+    }
+  }
+
+  // Adds schema to the instance
+  addSchema(
+    schema: AnySchema | AnySchema[], // If array is passed, `key` will be ignored
+    key?: string, // Optional schema key. Can be passed to `validate` method instead of schema object or id/ref. One schema per instance can have empty `id` and `key`.
+    _meta?: boolean, // true if schema is a meta-schema. Used internally, addMetaSchema should be used instead.
+    _validateSchema = this.opts.validateSchema // false to skip schema validation. Used internally, option validateSchema should be used instead.
+  ): Ajv {
+    if (Array.isArray(schema)) {
+      for (const sch of schema) this.addSchema(sch, undefined, _meta, _validateSchema)
+      return this
+    }
+    let id: string | undefined
+    if (typeof schema === "object") {
+      const {schemaId} = this.opts
+      id = schema[schemaId]
+      if (id !== undefined && typeof id != "string") {
+        throw new Error(`schema ${schemaId} must be string`)
+      }
+    }
+    key = normalizeId(key || id)
+    this._checkUnique(key)
+    this.schemas[key] = this._addSchema(schema, _meta, key, _validateSchema, true)
+    return this
+  }
+
+  // Add schema that will be used to validate other schemas
+  // options in META_IGNORE_OPTIONS are alway set to false
+  addMetaSchema(
+    schema: AnySchemaObject,
+    key?: string, // schema key
+    _validateSchema = this.opts.validateSchema // false to skip schema validation, can be used to override validateSchema option for meta-schema
+  ): Ajv {
+    this.addSchema(schema, key, true, _validateSchema)
+    return this
+  }
+
+  //  Validate schema against its meta-schema
+  validateSchema(schema: AnySchema, throwOrLogError?: boolean): boolean | Promise<unknown> {
+    if (typeof schema == "boolean") return true
+    let $schema: string | AnySchemaObject | undefined
+    $schema = schema.$schema
+    if ($schema !== undefined && typeof $schema != "string") {
+      throw new Error("$schema must be a string")
+    }
+    $schema = $schema || this.opts.defaultMeta || this.defaultMeta()
+    if (!$schema) {
+      this.logger.warn("meta-schema not available")
+      this.errors = null
+      return true
+    }
+    const valid = this.validate($schema, schema)
+    if (!valid && throwOrLogError) {
+      const message = "schema is invalid: " + this.errorsText()
+      if (this.opts.validateSchema === "log") this.logger.error(message)
+      else throw new Error(message)
+    }
+    return valid
+  }
+
+  // Get compiled schema by `key` or `ref`.
+  // (`key` that was passed to `addSchema` or full schema reference - `schema.$id` or resolved id)
+  getSchema<T = unknown>(keyRef: string): AnyValidateFunction<T> | undefined {
+    let sch
+    while (typeof (sch = getSchEnv.call(this, keyRef)) == "string") keyRef = sch
+    if (sch === undefined) {
+      const {schemaId} = this.opts
+      const root = new SchemaEnv({schema: {}, schemaId})
+      sch = resolveSchema.call(this, root, keyRef)
+      if (!sch) return
+      this.refs[keyRef] = sch
+    }
+    return (sch.validate || this._compileSchemaEnv(sch)) as AnyValidateFunction<T> | undefined
+  }
+
+  // Remove cached schema(s).
+  // If no parameter is passed all schemas but meta-schemas are removed.
+  // If RegExp is passed all schemas with key/id matching pattern but meta-schemas are removed.
+  // Even if schema is referenced by other schemas it still can be removed as other schemas have local references.
+  removeSchema(schemaKeyRef?: AnySchema | string | RegExp): Ajv {
+    if (schemaKeyRef instanceof RegExp) {
+      this._removeAllSchemas(this.schemas, schemaKeyRef)
+      this._removeAllSchemas(this.refs, schemaKeyRef)
+      return this
+    }
+    switch (typeof schemaKeyRef) {
+      case "undefined":
+        this._removeAllSchemas(this.schemas)
+        this._removeAllSchemas(this.refs)
+        this._cache.clear()
+        return this
+      case "string": {
+        const sch = getSchEnv.call(this, schemaKeyRef)
+        if (typeof sch == "object") this._cache.delete(sch.schema)
+        delete this.schemas[schemaKeyRef]
+        delete this.refs[schemaKeyRef]
+        return this
+      }
+      case "object": {
+        const cacheKey = schemaKeyRef
+        this._cache.delete(cacheKey)
+        let id = schemaKeyRef[this.opts.schemaId]
+        if (id) {
+          id = normalizeId(id)
+          delete this.schemas[id]
+          delete this.refs[id]
+        }
+        return this
+      }
+      default:
+        throw new Error("ajv.removeSchema: invalid parameter")
+    }
+  }
+
+  // add "vocabulary" - a collection of keywords
+  addVocabulary(definitions: Vocabulary): Ajv {
+    for (const def of definitions) this.addKeyword(def)
+    return this
+  }
+
+  addKeyword(
+    kwdOrDef: string | KeywordDefinition,
+    def?: KeywordDefinition // deprecated
+  ): Ajv {
+    let keyword: string | string[]
+    if (typeof kwdOrDef == "string") {
+      keyword = kwdOrDef
+      if (typeof def == "object") {
+        this.logger.warn("these parameters are deprecated, see docs for addKeyword")
+        def.keyword = keyword
+      }
+    } else if (typeof kwdOrDef == "object" && def === undefined) {
+      def = kwdOrDef
+      keyword = def.keyword
+      if (Array.isArray(keyword) && !keyword.length) {
+        throw new Error("addKeywords: keyword must be string or non-empty array")
+      }
+    } else {
+      throw new Error("invalid addKeywords parameters")
+    }
+
+    checkKeyword.call(this, keyword, def)
+    if (!def) {
+      eachItem(keyword, (kwd) => addRule.call(this, kwd))
+      return this
+    }
+    keywordMetaschema.call(this, def)
+    const definition: AddedKeywordDefinition = {
+      ...def,
+      type: getJSONTypes(def.type),
+      schemaType: getJSONTypes(def.schemaType),
+    }
+    eachItem(
+      keyword,
+      definition.type.length === 0
+        ? (k) => addRule.call(this, k, definition)
+        : (k) => definition.type.forEach((t) => addRule.call(this, k, definition, t))
+    )
+    return this
+  }
+
+  getKeyword(keyword: string): AddedKeywordDefinition | boolean {
+    const rule = this.RULES.all[keyword]
+    return typeof rule == "object" ? rule.definition : !!rule
+  }
+
+  // Remove keyword
+  removeKeyword(keyword: string): Ajv {
+    // TODO return type should be Ajv
+    const {RULES} = this
+    delete RULES.keywords[keyword]
+    delete RULES.all[keyword]
+    for (const group of RULES.rules) {
+      const i = group.rules.findIndex((rule) => rule.keyword === keyword)
+      if (i >= 0) group.rules.splice(i, 1)
+    }
+    return this
+  }
+
+  // Add format
+  addFormat(name: string, format: Format): Ajv {
+    if (typeof format == "string") format = new RegExp(format)
+    this.formats[name] = format
+    return this
+  }
+
+  errorsText(
+    errors: ErrorObject[] | null | undefined = this.errors, // optional array of validation errors
+    {separator = ", ", dataVar = "data"}: ErrorsTextOptions = {} // optional options with properties `separator` and `dataVar`
+  ): string {
+    if (!errors || errors.length === 0) return "No errors"
+    return errors
+      .map((e) => `${dataVar}${e.instancePath} ${e.message}`)
+      .reduce((text, msg) => text + separator + msg)
+  }
+
+  $dataMetaSchema(metaSchema: AnySchemaObject, keywordsJsonPointers: string[]): AnySchemaObject {
+    const rules = this.RULES.all
+    metaSchema = JSON.parse(JSON.stringify(metaSchema))
+    for (const jsonPointer of keywordsJsonPointers) {
+      const segments = jsonPointer.split("/").slice(1) // first segment is an empty string
+      let keywords = metaSchema
+      for (const seg of segments) keywords = keywords[seg] as AnySchemaObject
+
+      for (const key in rules) {
+        const rule = rules[key]
+        if (typeof rule != "object") continue
+        const {$data} = rule.definition
+        const schema = keywords[key] as AnySchemaObject | undefined
+        if ($data && schema) keywords[key] = schemaOrData(schema)
+      }
+    }
+
+    return metaSchema
+  }
+
+  private _removeAllSchemas(schemas: {[Ref in string]?: SchemaEnv | string}, regex?: RegExp): void {
+    for (const keyRef in schemas) {
+      const sch = schemas[keyRef]
+      if (!regex || regex.test(keyRef)) {
+        if (typeof sch == "string") {
+          delete schemas[keyRef]
+        } else if (sch && !sch.meta) {
+          this._cache.delete(sch.schema)
+          delete schemas[keyRef]
+        }
+      }
+    }
+  }
+
+  _addSchema(
+    schema: AnySchema,
+    meta?: boolean,
+    baseId?: string,
+    validateSchema = this.opts.validateSchema,
+    addSchema = this.opts.addUsedSchema
+  ): SchemaEnv {
+    let id: string | undefined
+    const {schemaId} = this.opts
+    if (typeof schema == "object") {
+      id = schema[schemaId]
+    } else {
+      if (this.opts.jtd) throw new Error("schema must be object")
+      else if (typeof schema != "boolean") throw new Error("schema must be object or boolean")
+    }
+    let sch = this._cache.get(schema)
+    if (sch !== undefined) return sch
+
+    baseId = normalizeId(id || baseId)
+    const localRefs = getSchemaRefs.call(this, schema, baseId)
+    sch = new SchemaEnv({schema, schemaId, meta, baseId, localRefs})
+    this._cache.set(sch.schema, sch)
+    if (addSchema && !baseId.startsWith("#")) {
+      // TODO atm it is allowed to overwrite schemas without id (instead of not adding them)
+      if (baseId) this._checkUnique(baseId)
+      this.refs[baseId] = sch
+    }
+    if (validateSchema) this.validateSchema(schema, true)
+    return sch
+  }
+
+  private _checkUnique(id: string): void {
+    if (this.schemas[id] || this.refs[id]) {
+      throw new Error(`schema with key or id "${id}" already exists`)
+    }
+  }
+
+  private _compileSchemaEnv(sch: SchemaEnv): AnyValidateFunction {
+    if (sch.meta) this._compileMetaSchema(sch)
+    else compileSchema.call(this, sch)
+
+    /* istanbul ignore if */
+    if (!sch.validate) throw new Error("ajv implementation error")
+    return sch.validate
+  }
+
+  private _compileMetaSchema(sch: SchemaEnv): void {
+    const currentOpts = this.opts
+    this.opts = this._metaOpts
+    try {
+      compileSchema.call(this, sch)
+    } finally {
+      this.opts = currentOpts
+    }
+  }
+}
+
+export interface ErrorsTextOptions {
+  separator?: string
+  dataVar?: string
+}
+
+function checkOptions(
+  this: Ajv,
+  checkOpts: OptionsInfo<RemovedOptions | DeprecatedOptions>,
+  options: Options & RemovedOptions,
+  msg: string,
+  log: "warn" | "error" = "error"
+): void {
+  for (const key in checkOpts) {
+    const opt = key as keyof typeof checkOpts
+    if (opt in options) this.logger[log](`${msg}: option ${key}. ${checkOpts[opt]}`)
+  }
+}
+
+function getSchEnv(this: Ajv, keyRef: string): SchemaEnv | string | undefined {
+  keyRef = normalizeId(keyRef) // TODO tests fail without this line
+  return this.schemas[keyRef] || this.refs[keyRef]
+}
+
+function addInitialSchemas(this: Ajv): void {
+  const optsSchemas = this.opts.schemas
+  if (!optsSchemas) return
+  if (Array.isArray(optsSchemas)) this.addSchema(optsSchemas)
+  else for (const key in optsSchemas) this.addSchema(optsSchemas[key] as AnySchema, key)
+}
+
+function addInitialFormats(this: Ajv): void {
+  for (const name in this.opts.formats) {
+    const format = this.opts.formats[name]
+    if (format) this.addFormat(name, format)
+  }
+}
+
+function addInitialKeywords(
+  this: Ajv,
+  defs: Vocabulary | {[K in string]?: KeywordDefinition}
+): void {
+  if (Array.isArray(defs)) {
+    this.addVocabulary(defs)
+    return
+  }
+  this.logger.warn("keywords option as map is deprecated, pass array")
+  for (const keyword in defs) {
+    const def = defs[keyword] as KeywordDefinition
+    if (!def.keyword) def.keyword = keyword
+    this.addKeyword(def)
+  }
+}
+
+function getMetaSchemaOptions(this: Ajv): InstanceOptions {
+  const metaOpts = {...this.opts}
+  for (const opt of META_IGNORE_OPTIONS) delete metaOpts[opt]
+  return metaOpts
+}
+
+const noLogs = {log() {}, warn() {}, error() {}}
+
+function getLogger(logger?: Partial<Logger> | false): Logger {
+  if (logger === false) return noLogs
+  if (logger === undefined) return console
+  if (logger.log && logger.warn && logger.error) return logger as Logger
+  throw new Error("logger must implement log, warn and error methods")
+}
+
+const KEYWORD_NAME = /^[a-z_$][a-z0-9_$:-]*$/i
+
+function checkKeyword(this: Ajv, keyword: string | string[], def?: KeywordDefinition): void {
+  const {RULES} = this
+  eachItem(keyword, (kwd) => {
+    if (RULES.keywords[kwd]) throw new Error(`Keyword ${kwd} is already defined`)
+    if (!KEYWORD_NAME.test(kwd)) throw new Error(`Keyword ${kwd} has invalid name`)
+  })
+  if (!def) return
+  if (def.$data && !("code" in def || "validate" in def)) {
+    throw new Error('$data keyword must have "code" or "validate" function')
+  }
+}
+
+function addRule(
+  this: Ajv,
+  keyword: string,
+  definition?: AddedKeywordDefinition,
+  dataType?: JSONType
+): void {
+  const post = definition?.post
+  if (dataType && post) throw new Error('keyword with "post" flag cannot have "type"')
+  const {RULES} = this
+  let ruleGroup = post ? RULES.post : RULES.rules.find(({type: t}) => t === dataType)
+  if (!ruleGroup) {
+    ruleGroup = {type: dataType, rules: []}
+    RULES.rules.push(ruleGroup)
+  }
+  RULES.keywords[keyword] = true
+  if (!definition) return
+
+  const rule: Rule = {
+    keyword,
+    definition: {
+      ...definition,
+      type: getJSONTypes(definition.type),
+      schemaType: getJSONTypes(definition.schemaType),
+    },
+  }
+  if (definition.before) addBeforeRule.call(this, ruleGroup, rule, definition.before)
+  else ruleGroup.rules.push(rule)
+  RULES.all[keyword] = rule
+  definition.implements?.forEach((kwd) => this.addKeyword(kwd))
+}
+
+function addBeforeRule(this: Ajv, ruleGroup: RuleGroup, rule: Rule, before: string): void {
+  const i = ruleGroup.rules.findIndex((_rule) => _rule.keyword === before)
+  if (i >= 0) {
+    ruleGroup.rules.splice(i, 0, rule)
+  } else {
+    ruleGroup.rules.push(rule)
+    this.logger.warn(`rule ${before} is not defined`)
+  }
+}
+
+function keywordMetaschema(this: Ajv, def: KeywordDefinition): void {
+  let {metaSchema} = def
+  if (metaSchema === undefined) return
+  if (def.$data && this.opts.$data) metaSchema = schemaOrData(metaSchema)
+  def.validateSchema = this.compile(metaSchema, true)
+}
+
+const $dataRef = {
+  $ref: "https://raw.githubusercontent.com/ajv-validator/ajv/master/lib/refs/data.json#",
+}
+
+function schemaOrData(schema: AnySchema): AnySchemaObject {
+  return {anyOf: [schema, $dataRef]}
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/jtd.ts

@@ -0,0 +1,132 @@
+import type {AnySchemaObject, SchemaObject, JTDParser} from "./types"
+import type {JTDSchemaType, SomeJTDSchemaType, JTDDataType} from "./types/jtd-schema"
+import AjvCore, {CurrentOptions} from "./core"
+import jtdVocabulary from "./vocabularies/jtd"
+import jtdMetaSchema from "./refs/jtd-schema"
+import compileSerializer from "./compile/jtd/serialize"
+import compileParser from "./compile/jtd/parse"
+import {SchemaEnv} from "./compile"
+
+const META_SCHEMA_ID = "JTD-meta-schema"
+
+type JTDOptions = CurrentOptions & {
+  // strict mode options not supported with JTD:
+  strict?: never
+  allowMatchingProperties?: never
+  allowUnionTypes?: never
+  validateFormats?: never
+  // validation and reporting options not supported with JTD:
+  $data?: never
+  verbose?: boolean
+  $comment?: never
+  formats?: never
+  loadSchema?: never
+  // options to modify validated data:
+  useDefaults?: never
+  coerceTypes?: never
+  // advanced options:
+  next?: never
+  unevaluated?: never
+  dynamicRef?: never
+  meta?: boolean
+  defaultMeta?: never
+  inlineRefs?: boolean
+  loopRequired?: never
+  multipleOfPrecision?: never
+}
+
+export class Ajv extends AjvCore {
+  constructor(opts: JTDOptions = {}) {
+    super({
+      ...opts,
+      jtd: true,
+    })
+  }
+
+  _addVocabularies(): void {
+    super._addVocabularies()
+    this.addVocabulary(jtdVocabulary)
+  }
+
+  _addDefaultMetaSchema(): void {
+    super._addDefaultMetaSchema()
+    if (!this.opts.meta) return
+    this.addMetaSchema(jtdMetaSchema, META_SCHEMA_ID, false)
+  }
+
+  defaultMeta(): string | AnySchemaObject | undefined {
+    return (this.opts.defaultMeta =
+      super.defaultMeta() || (this.getSchema(META_SCHEMA_ID) ? META_SCHEMA_ID : undefined))
+  }
+
+  compileSerializer<T = unknown>(schema: SchemaObject): (data: T) => string
+  // Separated for type inference to work
+  // eslint-disable-next-line @typescript-eslint/unified-signatures
+  compileSerializer<T = unknown>(schema: JTDSchemaType<T>): (data: T) => string
+  compileSerializer<T = unknown>(schema: SchemaObject): (data: T) => string {
+    const sch = this._addSchema(schema)
+    return sch.serialize || this._compileSerializer(sch)
+  }
+
+  compileParser<T = unknown>(schema: SchemaObject): JTDParser<T>
+  // Separated for type inference to work
+  // eslint-disable-next-line @typescript-eslint/unified-signatures
+  compileParser<T = unknown>(schema: JTDSchemaType<T>): JTDParser<T>
+  compileParser<T = unknown>(schema: SchemaObject): JTDParser<T> {
+    const sch = this._addSchema(schema)
+    return (sch.parse || this._compileParser(sch)) as JTDParser<T>
+  }
+
+  private _compileSerializer<T>(sch: SchemaEnv): (data: T) => string {
+    compileSerializer.call(this, sch, (sch.schema as AnySchemaObject).definitions || {})
+    /* istanbul ignore if */
+    if (!sch.serialize) throw new Error("ajv implementation error")
+    return sch.serialize
+  }
+
+  private _compileParser(sch: SchemaEnv): JTDParser {
+    compileParser.call(this, sch, (sch.schema as AnySchemaObject).definitions || {})
+    /* istanbul ignore if */
+    if (!sch.parse) throw new Error("ajv implementation error")
+    return sch.parse
+  }
+}
+
+module.exports = exports = Ajv
+module.exports.Ajv = Ajv
+Object.defineProperty(exports, "__esModule", {value: true})
+
+export default Ajv
+
+export {
+  Format,
+  FormatDefinition,
+  AsyncFormatDefinition,
+  KeywordDefinition,
+  KeywordErrorDefinition,
+  CodeKeywordDefinition,
+  MacroKeywordDefinition,
+  FuncKeywordDefinition,
+  Vocabulary,
+  Schema,
+  SchemaObject,
+  AnySchemaObject,
+  AsyncSchema,
+  AnySchema,
+  ValidateFunction,
+  AsyncValidateFunction,
+  ErrorObject,
+  ErrorNoParams,
+  JTDParser,
+} from "./types"
+
+export {Plugin, Options, CodeOptions, InstanceOptions, Logger, ErrorsTextOptions} from "./core"
+export {SchemaCxt, SchemaObjCxt} from "./compile"
+export {KeywordCxt} from "./compile/validate"
+export {JTDErrorObject} from "./vocabularies/jtd"
+export {_, str, stringify, nil, Name, Code, CodeGen, CodeGenOptions} from "./compile/codegen"
+
+export {JTDSchemaType, SomeJTDSchemaType, JTDDataType}
+export {JTDOptions}
+export {default as ValidationError} from "./runtime/validation_error"
+export {default as MissingRefError} from "./compile/ref_error"

frontend/node_modules/schema-utils/node_modules/ajv/lib/refs/data.json

@@ -0,0 +1,13 @@
+{
+  "$id": "https://raw.githubusercontent.com/ajv-validator/ajv/master/lib/refs/data.json#",
+  "description": "Meta-schema for $data reference (JSON AnySchema extension proposal)",
+  "type": "object",
+  "required": ["$data"],
+  "properties": {
+    "$data": {
+      "type": "string",
+      "anyOf": [{"format": "relative-json-pointer"}, {"format": "json-pointer"}]
+    }
+  },
+  "additionalProperties": false
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/refs/json-schema-2019-09/index.ts

@@ -0,0 +1,28 @@
+import type Ajv from "../../core"
+import type {AnySchemaObject} from "../../types"
+import * as metaSchema from "./schema.json"
+import * as applicator from "./meta/applicator.json"
+import * as content from "./meta/content.json"
+import * as core from "./meta/core.json"
+import * as format from "./meta/format.json"
+import * as metadata from "./meta/meta-data.json"
+import * as validation from "./meta/validation.json"
+
+const META_SUPPORT_DATA = ["/properties"]
+
+export default function addMetaSchema2019(this: Ajv, $data?: boolean): Ajv {
+  ;[
+    metaSchema,
+    applicator,
+    content,
+    core,
+    with$data(this, format),
+    metadata,
+    with$data(this, validation),
+  ].forEach((sch) => this.addMetaSchema(sch, undefined, false))
+  return this
+
+  function with$data(ajv: Ajv, sch: AnySchemaObject): AnySchemaObject {
+    return $data ? ajv.$dataMetaSchema(sch, META_SUPPORT_DATA) : sch
+  }
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/refs/json-schema-2019-09/meta/applicator.json

@@ -0,0 +1,53 @@
+{
+  "$schema": "https://json-schema.org/draft/2019-09/schema",
+  "$id": "https://json-schema.org/draft/2019-09/meta/applicator",
+  "$vocabulary": {
+    "https://json-schema.org/draft/2019-09/vocab/applicator": true
+  },
+  "$recursiveAnchor": true,
+
+  "title": "Applicator vocabulary meta-schema",
+  "type": ["object", "boolean"],
+  "properties": {
+    "additionalItems": {"$recursiveRef": "#"},
+    "unevaluatedItems": {"$recursiveRef": "#"},
+    "items": {
+      "anyOf": [{"$recursiveRef": "#"}, {"$ref": "#/$defs/schemaArray"}]
+    },
+    "contains": {"$recursiveRef": "#"},
+    "additionalProperties": {"$recursiveRef": "#"},
+    "unevaluatedProperties": {"$recursiveRef": "#"},
+    "properties": {
+      "type": "object",
+      "additionalProperties": {"$recursiveRef": "#"},
+      "default": {}
+    },
+    "patternProperties": {
+      "type": "object",
+      "additionalProperties": {"$recursiveRef": "#"},
+      "propertyNames": {"format": "regex"},
+      "default": {}
+    },
+    "dependentSchemas": {
+      "type": "object",
+      "additionalProperties": {
+        "$recursiveRef": "#"
+      }
+    },
+    "propertyNames": {"$recursiveRef": "#"},
+    "if": {"$recursiveRef": "#"},
+    "then": {"$recursiveRef": "#"},
+    "else": {"$recursiveRef": "#"},
+    "allOf": {"$ref": "#/$defs/schemaArray"},
+    "anyOf": {"$ref": "#/$defs/schemaArray"},
+    "oneOf": {"$ref": "#/$defs/schemaArray"},
+    "not": {"$recursiveRef": "#"}
+  },
+  "$defs": {
+    "schemaArray": {
+      "type": "array",
+      "minItems": 1,
+      "items": {"$recursiveRef": "#"}
+    }
+  }
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/refs/json-schema-2019-09/meta/content.json

@@ -0,0 +1,17 @@
+{
+  "$schema": "https://json-schema.org/draft/2019-09/schema",
+  "$id": "https://json-schema.org/draft/2019-09/meta/content",
+  "$vocabulary": {
+    "https://json-schema.org/draft/2019-09/vocab/content": true
+  },
+  "$recursiveAnchor": true,
+
+  "title": "Content vocabulary meta-schema",
+
+  "type": ["object", "boolean"],
+  "properties": {
+    "contentMediaType": {"type": "string"},
+    "contentEncoding": {"type": "string"},
+    "contentSchema": {"$recursiveRef": "#"}
+  }
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/refs/json-schema-2019-09/meta/core.json

@@ -0,0 +1,57 @@
+{
+  "$schema": "https://json-schema.org/draft/2019-09/schema",
+  "$id": "https://json-schema.org/draft/2019-09/meta/core",
+  "$vocabulary": {
+    "https://json-schema.org/draft/2019-09/vocab/core": true
+  },
+  "$recursiveAnchor": true,
+
+  "title": "Core vocabulary meta-schema",
+  "type": ["object", "boolean"],
+  "properties": {
+    "$id": {
+      "type": "string",
+      "format": "uri-reference",
+      "$comment": "Non-empty fragments not allowed.",
+      "pattern": "^[^#]*#?$"
+    },
+    "$schema": {
+      "type": "string",
+      "format": "uri"
+    },
+    "$anchor": {
+      "type": "string",
+      "pattern": "^[A-Za-z][-A-Za-z0-9.:_]*$"
+    },
+    "$ref": {
+      "type": "string",
+      "format": "uri-reference"
+    },
+    "$recursiveRef": {
+      "type": "string",
+      "format": "uri-reference"
+    },
+    "$recursiveAnchor": {
+      "type": "boolean",
+      "default": false
+    },
+    "$vocabulary": {
+      "type": "object",
+      "propertyNames": {
+        "type": "string",
+        "format": "uri"
+      },
+      "additionalProperties": {
+        "type": "boolean"
+      }
+    },
+    "$comment": {
+      "type": "string"
+    },
+    "$defs": {
+      "type": "object",
+      "additionalProperties": {"$recursiveRef": "#"},
+      "default": {}
+    }
+  }
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/refs/json-schema-2019-09/meta/format.json

@@ -0,0 +1,14 @@
+{
+  "$schema": "https://json-schema.org/draft/2019-09/schema",
+  "$id": "https://json-schema.org/draft/2019-09/meta/format",
+  "$vocabulary": {
+    "https://json-schema.org/draft/2019-09/vocab/format": true
+  },
+  "$recursiveAnchor": true,
+
+  "title": "Format vocabulary meta-schema",
+  "type": ["object", "boolean"],
+  "properties": {
+    "format": {"type": "string"}
+  }
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/refs/json-schema-2019-09/meta/meta-data.json

@@ -0,0 +1,37 @@
+{
+  "$schema": "https://json-schema.org/draft/2019-09/schema",
+  "$id": "https://json-schema.org/draft/2019-09/meta/meta-data",
+  "$vocabulary": {
+    "https://json-schema.org/draft/2019-09/vocab/meta-data": true
+  },
+  "$recursiveAnchor": true,
+
+  "title": "Meta-data vocabulary meta-schema",
+
+  "type": ["object", "boolean"],
+  "properties": {
+    "title": {
+      "type": "string"
+    },
+    "description": {
+      "type": "string"
+    },
+    "default": true,
+    "deprecated": {
+      "type": "boolean",
+      "default": false
+    },
+    "readOnly": {
+      "type": "boolean",
+      "default": false
+    },
+    "writeOnly": {
+      "type": "boolean",
+      "default": false
+    },
+    "examples": {
+      "type": "array",
+      "items": true
+    }
+  }
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/refs/json-schema-2019-09/meta/validation.json

@@ -0,0 +1,90 @@
+{
+  "$schema": "https://json-schema.org/draft/2019-09/schema",
+  "$id": "https://json-schema.org/draft/2019-09/meta/validation",
+  "$vocabulary": {
+    "https://json-schema.org/draft/2019-09/vocab/validation": true
+  },
+  "$recursiveAnchor": true,
+
+  "title": "Validation vocabulary meta-schema",
+  "type": ["object", "boolean"],
+  "properties": {
+    "multipleOf": {
+      "type": "number",
+      "exclusiveMinimum": 0
+    },
+    "maximum": {
+      "type": "number"
+    },
+    "exclusiveMaximum": {
+      "type": "number"
+    },
+    "minimum": {
+      "type": "number"
+    },
+    "exclusiveMinimum": {
+      "type": "number"
+    },
+    "maxLength": {"$ref": "#/$defs/nonNegativeInteger"},
+    "minLength": {"$ref": "#/$defs/nonNegativeIntegerDefault0"},
+    "pattern": {
+      "type": "string",
+      "format": "regex"
+    },
+    "maxItems": {"$ref": "#/$defs/nonNegativeInteger"},
+    "minItems": {"$ref": "#/$defs/nonNegativeIntegerDefault0"},
+    "uniqueItems": {
+      "type": "boolean",
+      "default": false
+    },
+    "maxContains": {"$ref": "#/$defs/nonNegativeInteger"},
+    "minContains": {
+      "$ref": "#/$defs/nonNegativeInteger",
+      "default": 1
+    },
+    "maxProperties": {"$ref": "#/$defs/nonNegativeInteger"},
+    "minProperties": {"$ref": "#/$defs/nonNegativeIntegerDefault0"},
+    "required": {"$ref": "#/$defs/stringArray"},
+    "dependentRequired": {
+      "type": "object",
+      "additionalProperties": {
+        "$ref": "#/$defs/stringArray"
+      }
+    },
+    "const": true,
+    "enum": {
+      "type": "array",
+      "items": true
+    },
+    "type": {
+      "anyOf": [
+        {"$ref": "#/$defs/simpleTypes"},
+        {
+          "type": "array",
+          "items": {"$ref": "#/$defs/simpleTypes"},
+          "minItems": 1,
+          "uniqueItems": true
+        }
+      ]
+    }
+  },
+  "$defs": {
+    "nonNegativeInteger": {
+      "type": "integer",
+      "minimum": 0
+    },
+    "nonNegativeIntegerDefault0": {
+      "$ref": "#/$defs/nonNegativeInteger",
+      "default": 0
+    },
+    "simpleTypes": {
+      "enum": ["array", "boolean", "integer", "null", "number", "object", "string"]
+    },
+    "stringArray": {
+      "type": "array",
+      "items": {"type": "string"},
+      "uniqueItems": true,
+      "default": []
+    }
+  }
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/refs/json-schema-2019-09/schema.json

@@ -0,0 +1,39 @@
+{
+  "$schema": "https://json-schema.org/draft/2019-09/schema",
+  "$id": "https://json-schema.org/draft/2019-09/schema",
+  "$vocabulary": {
+    "https://json-schema.org/draft/2019-09/vocab/core": true,
+    "https://json-schema.org/draft/2019-09/vocab/applicator": true,
+    "https://json-schema.org/draft/2019-09/vocab/validation": true,
+    "https://json-schema.org/draft/2019-09/vocab/meta-data": true,
+    "https://json-schema.org/draft/2019-09/vocab/format": false,
+    "https://json-schema.org/draft/2019-09/vocab/content": true
+  },
+  "$recursiveAnchor": true,
+
+  "title": "Core and Validation specifications meta-schema",
+  "allOf": [
+    {"$ref": "meta/core"},
+    {"$ref": "meta/applicator"},
+    {"$ref": "meta/validation"},
+    {"$ref": "meta/meta-data"},
+    {"$ref": "meta/format"},
+    {"$ref": "meta/content"}
+  ],
+  "type": ["object", "boolean"],
+  "properties": {
+    "definitions": {
+      "$comment": "While no longer an official keyword as it is replaced by $defs, this keyword is retained in the meta-schema to prevent incompatible extensions as it remains in common use.",
+      "type": "object",
+      "additionalProperties": {"$recursiveRef": "#"},
+      "default": {}
+    },
+    "dependencies": {
+      "$comment": "\"dependencies\" is no longer a keyword, but schema authors should avoid redefining it to facilitate a smooth transition to \"dependentSchemas\" and \"dependentRequired\"",
+      "type": "object",
+      "additionalProperties": {
+        "anyOf": [{"$recursiveRef": "#"}, {"$ref": "meta/validation#/$defs/stringArray"}]
+      }
+    }
+  }
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/refs/json-schema-2020-12/index.ts

@@ -0,0 +1,30 @@
+import type Ajv from "../../core"
+import type {AnySchemaObject} from "../../types"
+import * as metaSchema from "./schema.json"
+import * as applicator from "./meta/applicator.json"
+import * as unevaluated from "./meta/unevaluated.json"
+import * as content from "./meta/content.json"
+import * as core from "./meta/core.json"
+import * as format from "./meta/format-annotation.json"
+import * as metadata from "./meta/meta-data.json"
+import * as validation from "./meta/validation.json"
+
+const META_SUPPORT_DATA = ["/properties"]
+
+export default function addMetaSchema2020(this: Ajv, $data?: boolean): Ajv {
+  ;[
+    metaSchema,
+    applicator,
+    unevaluated,
+    content,
+    core,
+    with$data(this, format),
+    metadata,
+    with$data(this, validation),
+  ].forEach((sch) => this.addMetaSchema(sch, undefined, false))
+  return this
+
+  function with$data(ajv: Ajv, sch: AnySchemaObject): AnySchemaObject {
+    return $data ? ajv.$dataMetaSchema(sch, META_SUPPORT_DATA) : sch
+  }
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/refs/json-schema-2020-12/meta/applicator.json

@@ -0,0 +1,48 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://json-schema.org/draft/2020-12/meta/applicator",
+  "$vocabulary": {
+    "https://json-schema.org/draft/2020-12/vocab/applicator": true
+  },
+  "$dynamicAnchor": "meta",
+
+  "title": "Applicator vocabulary meta-schema",
+  "type": ["object", "boolean"],
+  "properties": {
+    "prefixItems": {"$ref": "#/$defs/schemaArray"},
+    "items": {"$dynamicRef": "#meta"},
+    "contains": {"$dynamicRef": "#meta"},
+    "additionalProperties": {"$dynamicRef": "#meta"},
+    "properties": {
+      "type": "object",
+      "additionalProperties": {"$dynamicRef": "#meta"},
+      "default": {}
+    },
+    "patternProperties": {
+      "type": "object",
+      "additionalProperties": {"$dynamicRef": "#meta"},
+      "propertyNames": {"format": "regex"},
+      "default": {}
+    },
+    "dependentSchemas": {
+      "type": "object",
+      "additionalProperties": {"$dynamicRef": "#meta"},
+      "default": {}
+    },
+    "propertyNames": {"$dynamicRef": "#meta"},
+    "if": {"$dynamicRef": "#meta"},
+    "then": {"$dynamicRef": "#meta"},
+    "else": {"$dynamicRef": "#meta"},
+    "allOf": {"$ref": "#/$defs/schemaArray"},
+    "anyOf": {"$ref": "#/$defs/schemaArray"},
+    "oneOf": {"$ref": "#/$defs/schemaArray"},
+    "not": {"$dynamicRef": "#meta"}
+  },
+  "$defs": {
+    "schemaArray": {
+      "type": "array",
+      "minItems": 1,
+      "items": {"$dynamicRef": "#meta"}
+    }
+  }
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/refs/json-schema-2020-12/meta/content.json

@@ -0,0 +1,17 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://json-schema.org/draft/2020-12/meta/content",
+  "$vocabulary": {
+    "https://json-schema.org/draft/2020-12/vocab/content": true
+  },
+  "$dynamicAnchor": "meta",
+
+  "title": "Content vocabulary meta-schema",
+
+  "type": ["object", "boolean"],
+  "properties": {
+    "contentEncoding": {"type": "string"},
+    "contentMediaType": {"type": "string"},
+    "contentSchema": {"$dynamicRef": "#meta"}
+  }
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/refs/json-schema-2020-12/meta/core.json

@@ -0,0 +1,51 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://json-schema.org/draft/2020-12/meta/core",
+  "$vocabulary": {
+    "https://json-schema.org/draft/2020-12/vocab/core": true
+  },
+  "$dynamicAnchor": "meta",
+
+  "title": "Core vocabulary meta-schema",
+  "type": ["object", "boolean"],
+  "properties": {
+    "$id": {
+      "$ref": "#/$defs/uriReferenceString",
+      "$comment": "Non-empty fragments not allowed.",
+      "pattern": "^[^#]*#?$"
+    },
+    "$schema": {"$ref": "#/$defs/uriString"},
+    "$ref": {"$ref": "#/$defs/uriReferenceString"},
+    "$anchor": {"$ref": "#/$defs/anchorString"},
+    "$dynamicRef": {"$ref": "#/$defs/uriReferenceString"},
+    "$dynamicAnchor": {"$ref": "#/$defs/anchorString"},
+    "$vocabulary": {
+      "type": "object",
+      "propertyNames": {"$ref": "#/$defs/uriString"},
+      "additionalProperties": {
+        "type": "boolean"
+      }
+    },
+    "$comment": {
+      "type": "string"
+    },
+    "$defs": {
+      "type": "object",
+      "additionalProperties": {"$dynamicRef": "#meta"}
+    }
+  },
+  "$defs": {
+    "anchorString": {
+      "type": "string",
+      "pattern": "^[A-Za-z_][-A-Za-z0-9._]*$"
+    },
+    "uriString": {
+      "type": "string",
+      "format": "uri"
+    },
+    "uriReferenceString": {
+      "type": "string",
+      "format": "uri-reference"
+    }
+  }
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/refs/json-schema-2020-12/meta/format-annotation.json

@@ -0,0 +1,14 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://json-schema.org/draft/2020-12/meta/format-annotation",
+  "$vocabulary": {
+    "https://json-schema.org/draft/2020-12/vocab/format-annotation": true
+  },
+  "$dynamicAnchor": "meta",
+
+  "title": "Format vocabulary meta-schema for annotation results",
+  "type": ["object", "boolean"],
+  "properties": {
+    "format": {"type": "string"}
+  }
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/refs/json-schema-2020-12/meta/meta-data.json

@@ -0,0 +1,37 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://json-schema.org/draft/2020-12/meta/meta-data",
+  "$vocabulary": {
+    "https://json-schema.org/draft/2020-12/vocab/meta-data": true
+  },
+  "$dynamicAnchor": "meta",
+
+  "title": "Meta-data vocabulary meta-schema",
+
+  "type": ["object", "boolean"],
+  "properties": {
+    "title": {
+      "type": "string"
+    },
+    "description": {
+      "type": "string"
+    },
+    "default": true,
+    "deprecated": {
+      "type": "boolean",
+      "default": false
+    },
+    "readOnly": {
+      "type": "boolean",
+      "default": false
+    },
+    "writeOnly": {
+      "type": "boolean",
+      "default": false
+    },
+    "examples": {
+      "type": "array",
+      "items": true
+    }
+  }
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/refs/json-schema-2020-12/meta/unevaluated.json

@@ -0,0 +1,15 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://json-schema.org/draft/2020-12/meta/unevaluated",
+  "$vocabulary": {
+    "https://json-schema.org/draft/2020-12/vocab/unevaluated": true
+  },
+  "$dynamicAnchor": "meta",
+
+  "title": "Unevaluated applicator vocabulary meta-schema",
+  "type": ["object", "boolean"],
+  "properties": {
+    "unevaluatedItems": {"$dynamicRef": "#meta"},
+    "unevaluatedProperties": {"$dynamicRef": "#meta"}
+  }
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/refs/json-schema-2020-12/meta/validation.json

@@ -0,0 +1,90 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://json-schema.org/draft/2020-12/meta/validation",
+  "$vocabulary": {
+    "https://json-schema.org/draft/2020-12/vocab/validation": true
+  },
+  "$dynamicAnchor": "meta",
+
+  "title": "Validation vocabulary meta-schema",
+  "type": ["object", "boolean"],
+  "properties": {
+    "type": {
+      "anyOf": [
+        {"$ref": "#/$defs/simpleTypes"},
+        {
+          "type": "array",
+          "items": {"$ref": "#/$defs/simpleTypes"},
+          "minItems": 1,
+          "uniqueItems": true
+        }
+      ]
+    },
+    "const": true,
+    "enum": {
+      "type": "array",
+      "items": true
+    },
+    "multipleOf": {
+      "type": "number",
+      "exclusiveMinimum": 0
+    },
+    "maximum": {
+      "type": "number"
+    },
+    "exclusiveMaximum": {
+      "type": "number"
+    },
+    "minimum": {
+      "type": "number"
+    },
+    "exclusiveMinimum": {
+      "type": "number"
+    },
+    "maxLength": {"$ref": "#/$defs/nonNegativeInteger"},
+    "minLength": {"$ref": "#/$defs/nonNegativeIntegerDefault0"},
+    "pattern": {
+      "type": "string",
+      "format": "regex"
+    },
+    "maxItems": {"$ref": "#/$defs/nonNegativeInteger"},
+    "minItems": {"$ref": "#/$defs/nonNegativeIntegerDefault0"},
+    "uniqueItems": {
+      "type": "boolean",
+      "default": false
+    },
+    "maxContains": {"$ref": "#/$defs/nonNegativeInteger"},
+    "minContains": {
+      "$ref": "#/$defs/nonNegativeInteger",
+      "default": 1
+    },
+    "maxProperties": {"$ref": "#/$defs/nonNegativeInteger"},
+    "minProperties": {"$ref": "#/$defs/nonNegativeIntegerDefault0"},
+    "required": {"$ref": "#/$defs/stringArray"},
+    "dependentRequired": {
+      "type": "object",
+      "additionalProperties": {
+        "$ref": "#/$defs/stringArray"
+      }
+    }
+  },
+  "$defs": {
+    "nonNegativeInteger": {
+      "type": "integer",
+      "minimum": 0
+    },
+    "nonNegativeIntegerDefault0": {
+      "$ref": "#/$defs/nonNegativeInteger",
+      "default": 0
+    },
+    "simpleTypes": {
+      "enum": ["array", "boolean", "integer", "null", "number", "object", "string"]
+    },
+    "stringArray": {
+      "type": "array",
+      "items": {"type": "string"},
+      "uniqueItems": true,
+      "default": []
+    }
+  }
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/refs/json-schema-2020-12/schema.json

@@ -0,0 +1,55 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://json-schema.org/draft/2020-12/schema",
+  "$vocabulary": {
+    "https://json-schema.org/draft/2020-12/vocab/core": true,
+    "https://json-schema.org/draft/2020-12/vocab/applicator": true,
+    "https://json-schema.org/draft/2020-12/vocab/unevaluated": true,
+    "https://json-schema.org/draft/2020-12/vocab/validation": true,
+    "https://json-schema.org/draft/2020-12/vocab/meta-data": true,
+    "https://json-schema.org/draft/2020-12/vocab/format-annotation": true,
+    "https://json-schema.org/draft/2020-12/vocab/content": true
+  },
+  "$dynamicAnchor": "meta",
+
+  "title": "Core and Validation specifications meta-schema",
+  "allOf": [
+    {"$ref": "meta/core"},
+    {"$ref": "meta/applicator"},
+    {"$ref": "meta/unevaluated"},
+    {"$ref": "meta/validation"},
+    {"$ref": "meta/meta-data"},
+    {"$ref": "meta/format-annotation"},
+    {"$ref": "meta/content"}
+  ],
+  "type": ["object", "boolean"],
+  "$comment": "This meta-schema also defines keywords that have appeared in previous drafts in order to prevent incompatible extensions as they remain in common use.",
+  "properties": {
+    "definitions": {
+      "$comment": "\"definitions\" has been replaced by \"$defs\".",
+      "type": "object",
+      "additionalProperties": {"$dynamicRef": "#meta"},
+      "deprecated": true,
+      "default": {}
+    },
+    "dependencies": {
+      "$comment": "\"dependencies\" has been split and replaced by \"dependentSchemas\" and \"dependentRequired\" in order to serve their differing semantics.",
+      "type": "object",
+      "additionalProperties": {
+        "anyOf": [{"$dynamicRef": "#meta"}, {"$ref": "meta/validation#/$defs/stringArray"}]
+      },
+      "deprecated": true,
+      "default": {}
+    },
+    "$recursiveAnchor": {
+      "$comment": "\"$recursiveAnchor\" has been replaced by \"$dynamicAnchor\".",
+      "$ref": "meta/core#/$defs/anchorString",
+      "deprecated": true
+    },
+    "$recursiveRef": {
+      "$comment": "\"$recursiveRef\" has been replaced by \"$dynamicRef\".",
+      "$ref": "meta/core#/$defs/uriReferenceString",
+      "deprecated": true
+    }
+  }
+}

frontend/node_modules/schema-utils/node_modules/ajv/lib/refs/json-schema-draft-06.json

@@ -0,0 +1,137 @@
+{
+  "$schema": "http://json-schema.org/draft-06/schema#",
+  "$id": "http://json-schema.org/draft-06/schema#",
+  "title": "Core schema meta-schema",
+  "definitions": {
+    "schemaArray": {
+      "type": "array",
+      "minItems": 1,
+      "items": {"$ref": "#"}
+    },
+    "nonNegativeInteger": {
+      "type": "integer",
+      "minimum": 0
+    },
+    "nonNegativeIntegerDefault0": {
+      "allOf": [{"$ref": "#/definitions/nonNegativeInteger"}, {"default": 0}]
+    },
+    "simpleTypes": {
+      "enum": ["array", "boolean", "integer", "null", "number", "object", "string"]
+    },
+    "stringArray": {
+      "type": "array",
+      "items": {"type": "string"},
+      "uniqueItems": true,
+      "default": []
+    }
+  },
+  "type": ["object", "boolean"],
+  "properties": {
+    "$id": {
+      "type": "string",
+      "format": "uri-reference"
+    },
+    "$schema": {
+      "type": "string",
+      "format": "uri"
+    },
+    "$ref": {
+      "type": "string",
+      "format": "uri-reference"
+    },
+    "title": {
+      "type": "string"
+    },
+    "description": {
+      "type": "string"
+    },
+    "default": {},
+    "examples": {
+      "type": "array",
+      "items": {}
+    },
+    "multipleOf": {
+      "type": "number",
+      "exclusiveMinimum": 0
+    },
+    "maximum": {
+      "type": "number"
+    },
+    "exclusiveMaximum": {
+      "type": "number"
+    },
+    "minimum": {
+      "type": "number"
+    },
+    "exclusiveMinimum": {
+      "type": "number"
+    },
+    "maxLength": {"$ref": "#/definitions/nonNegativeInteger"},
+    "minLength": {"$ref": "#/definitions/nonNegativeIntegerDefault0"},
+    "pattern": {
+      "type": "string",
+      "format": "regex"
+    },
+    "additionalItems": {"$ref": "#"},
+    "items": {
+      "anyOf": [{"$ref": "#"}, {"$ref": "#/definitions/schemaArray"}],
+      "default": {}
+    },
+    "maxItems": {"$ref": "#/definitions/nonNegativeInteger"},
+    "minItems": {"$ref": "#/definitions/nonNegativeIntegerDefault0"},
+    "uniqueItems": {
+      "type": "boolean",
+      "default": false
+    },
+    "contains": {"$ref": "#"},
+    "maxProperties": {"$ref": "#/definitions/nonNegativeInteger"},
+    "minProperties": {"$ref": "#/definitions/nonNegativeIntegerDefault0"},
+    "required": {"$ref": "#/definitions/stringArray"},
+    "additionalProperties": {"$ref": "#"},
+    "definitions": {
+      "type": "object",
+      "additionalProperties": {"$ref": "#"},
+      "default": {}
+    },
+    "properties": {
+      "type": "object",
+      "additionalProperties": {"$ref": "#"},
+      "default": {}
+    },
+    "patternProperties": {
+      "type": "object",
+      "additionalProperties": {"$ref": "#"},
+      "default": {}
+    },
+    "dependencies": {
+      "type": "object",
+      "additionalProperties": {
+        "anyOf": [{"$ref": "#"}, {"$ref": "#/definitions/stringArray"}]
+      }
+    },
+    "propertyNames": {"$ref": "#"},
+    "const": {},
+    "enum": {
+      "type": "array",
+      "minItems": 1,
+      "uniqueItems": true
+    },
+    "type": {
+      "anyOf": [
+        {"$ref": "#/definitions/simpleTypes"},
+        {
+          "type": "array",
+          "items": {"$ref": "#/definitions/simpleTypes"},
+          "minItems": 1,
+          "uniqueItems": true
+        }
+      ]
+    },
+    "format": {"type": "string"},
+    "allOf": {"$ref": "#/definitions/schemaArray"},
+    "anyOf": {"$ref": "#/definitions/schemaArray"},
+    "oneOf": {"$ref": "#/definitions/schemaArray"},
+    "not": {"$ref": "#"}
+  },
+  "default": {}
+}